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Hi everybody,
I'm totally new in this flashing world and I was messing around with my new Xperia Z1 Compact trying to get Kit Kat installed because when I bought the phone it came with JB 4.3. I flashed Latest KitKat Nordic 14.3.A.0.757 unbranded, and everything worked like a charm until I discovered that I lost 4G connection (It only connects to 3G). I went to settings to select network, and LTE is checked.
I was reading about this matter and it seems that nordic ROM doesn't support LTE Band 7 (2600Mhz) which is the band in my carrier. I tried flashing Central Europe Rom and Global rom for journalists found here in the forums. None of them seems to support my LTE band. I want to know if there is any way to recover 4G changing any setting or if you know a link to any generic ROM compatible with LTE Band 7 (2600Mhz), or if there is any way to revert to my original Jellybean 4.3 ROM using PC Companion or Sony Update Service. Any help will be very apreciated.
Hello,
I am using the Generic UK .757 on a BAND4 LTE network in Canada.
you have checked off the first thing to do from the checklist..
second is to make sure your APN settings are correct.
All these are simple, but if still no luck, some labour is in order.
Need to do full wipe and clean re-install
IF you are not rooted, just launch Sony PC companion with the phone NOT CONNECTED and do a repair. It should by default take you to KK
At the time of flashing, You probably had the wrong boxes checked and unchecked in the WIPE and Exclude boxes..
I'll try the two options
Thanks guys for the responses.
First I'll try to flask UK ROM to see if finally I get kitkat working on my phone. If this doesn't work I'll take the second option with PC Companion to restore the original ROM. I'll post the results.
It seems this rom doesn't work for me
GuizmoPhil said:
Hello,
I am using the Generic UK .757 on a BAND4 LTE network in Canada.
Click to expand...
Click to collapse
Hi Phil,
I found UK rom in this forum ver. .681 and flashed it, then I downloaded OTA update to .757. So far the problem remains. I discovered that I was wrong about My LTE Band, is 7 not 4. Apparently there's a carrier in UK with band [email protected] same as here (Colombia), so theorically this rom should work, but this is not the case. I'm trying to change more settings without luck. If you know something to help me, it would be very appreciated. Thanks.
Y2j-Hotaru said:
Hi Phil,
I found UK rom in this forum ver. .681 and flashed it, then I downloaded OTA update to .757. So far the problem remains. I discovered that I was wrong about My LTE Band, is 7 not 4. Apparently there's a carrier in UK with band [email protected] same as here (Colombia), so theorically this rom should work, but this is not the case. I'm trying to change more settings without luck. If you know something to help me, it would be very appreciated. Thanks.
Click to expand...
Click to collapse
Try changing it from the ussd *#*#4636#*#*
Sent from my C6902 using XDA Free mobile app
not able to download original rom
jewelkobayashi said:
you have checked off the first thing to do from the checklist..
second is to make sure your APN settings are correct.
All these are simple, but if still no luck, some labour is in order.
Need to do full wipe and clean re-install
IF you are not rooted, just launch Sony PC companion with the phone NOT CONNECTED and do a repair. It should by default take you to KK
At the time of flashing, You probably had the wrong boxes checked and unchecked in the WIPE and Exclude boxes..
Click to expand...
Click to collapse
Hi jewelkobayashi,
I tried the method you wrote, but, despite the phone being disconnected, it downloaded the same ROM that I recently have flashed (GLOBAL .757 commercial and Journalist). Is there any other way to download the original Phone ROM . I know my original ROM is GLOBAL-14.2.A.1.114 and the customization number is 1281-3723. I haven't found any site to download this exact firmware. If you know something, it would be very appreciated. Thanks in advance.
Are you sure about your customization number? Because it gets changed if you flash another firmware. Here's everything you need to know: http://forum.xda-developers.com/showthread.php?p=52011642 to download your firmware. By the way, what's your country, branding and SI-Number (so I can add your customization number to the list)?
Y2j-Hotaru said:
Hi everybody,
I'm totally new in this flashing world and I was messing around with my new Xperia Z1 Compact trying to get Kit Kat installed because when I bought the phone it came with JB 4.3. I flashed Latest KitKat Nordic 14.3.A.0.757 unbranded, and everything worked like a charm until I discovered that I lost 4G connection (It only connects to 3G). I went to settings to select network, and LTE is checked.
I was reading about this matter and it seems that nordic ROM doesn't support LTE Band 7 (2600Mhz) which is the band in my carrier. I tried flashing Central Europe Rom and Global rom for journalists found here in the forums. None of them seems to support my LTE band. I want to know if there is any way to recover 4G changing any setting or if you know a link to any generic ROM compatible with LTE Band 7 (2600Mhz), or if there is any way to revert to my original Jellybean 4.3 ROM using PC Companion or Sony Update Service. Any help will be very apreciated.
Click to expand...
Click to collapse
Stop flashing random ROMs and check your settings! Unless you have a different model phone than the rest of us (there are three, D5503, M51w and SO-02F), then ANY Z1C (D5503) ROM will work, but they come with different APN lists as bundling every carrier in the worlds APN settings would be a waste of space. Go to Settings > Mobile Networks > Access Point Names, and edit or create the correct APN in there. Look at a friends phone or on your carriers website for the correct settings. This is your problem, no doubt about it.
Please note that some carriers (mine included) have a special APN for LTE. E.g. standard is internet.tele2.se, LTE is 4g.tele2.se on my carrier.
...I have no idea where you're getting your data from, because literally every LTE network in the Nordics uses band 7.
Finally it worked
Rekoil said:
Stop flashing random ROMs and check your settings! Unless you have a different model phone than the rest of us (there are three, D5503, M51w and SO-02F), then ANY Z1C (D5503) ROM will work, but they come with different APN lists as bundling every carrier in the worlds APN settings would be a waste of space. Go to Settings > Mobile Networks > Access Point Names, and edit or create the correct APN in there. Look at a friends phone or on your carriers website for the correct settings. This is your problem, no doubt about it.
Please note that some carriers (mine included) have a special APN for LTE. E.g. standard is internet.tele2.se, LTE is 4g.tele2.se on my carrier.
...I have no idea where you're getting your data from, because literally every LTE network in the Nordics uses band 7.
Click to expand...
Click to collapse
Thanks for your response. I verified APN settings with friend's phones and it was identical. Finally I called my carrier's help desk and after some try/error setups with them, they gave me an alternate APN that worked until I came home where 4G icon dissapeared again. Then, I was surprised with helpdesk response when I called them again. "There is no 4G coverage in your home area". O.O What is intriging to me is that the phone displayed 4G all the time when I just bought it (Even with restarts and wherever i was) and this changed only when I flashed a generic rom. Is just a silly assumption, but, is possible that carriers can make things like force 4G icon in their custom roms to make advertising or something like that? Just asking. Anyway, Thanks a lot for the responses.
crohit911 said:
Try changing it from the ussd *#*#4636#*#*
Sent from my C6902 using XDA Free mobile app
Click to expand...
Click to collapse
Emmm do you have a manual to how to use the ussd??
I went into it to check it out, I touched I don't know what...
And now I can no longer connect to my network provider...
(reboot doens't helps, changing to wdmca or gsm or other options doesn't changes, VPN seems ok, I have no signal... )
Help!!!
Ok, this is what I did to screw it all
Go to the ussd *#*#4643#*#*
Go to phone info
Go to setings and Select radio band
It gives me the option of GSM/UMTS band = USA Band
-> I no longer have WCDMA or GSM connection :S
(LTE still works...)
Now, how do I go back to my previous options? or does it has nothing to do with it, and the problem is something else?
EDIT> problem solved, I had to reflash my ftf by just updating the FOTA (not sure I needed this...) and the BASEBAND... Now I am back up and running again.. >D
emilic said:
Ok, this is what I did to screw it all
Go to the ussd *#*#4643#*#*
Go to phone info
Go to setings and Select radio band
It gives me the option of GSM/UMTS band = USA Band
-> I no longer have WCDMA or GSM connection :S
(LTE still works...)
Now, how do I go back to my previous options? or does it has nothing to do with it, and the problem is something else?
EDIT> problem solved, I had to reflash my ftf by just updating the FOTA (not sure I needed this...) and the BASEBAND... Now I am back up and running again.. >D
Click to expand...
Click to collapse
Good to know that your problem is solved, even better you solved it yourself. Sorry for not being able to help, I don't know about that ussd code I shall try.
Sent from my C6902 using XDA Free mobile app
crohit911 said:
Good to know that your problem is solved, even better you solved it yourself. Sorry for not being able to help, I don't know about that ussd code I shall try.
Sent from my C6902 using XDA Free mobile app
Click to expand...
Click to collapse
Actually, there's an app in Google Play that is a shortcut to this ussd code : 4G LTE SWITCH
*YOU MUST BE ROOTED AND USING AN AOSP ROM*
CM11/PA/PAC-MAN/LIQUID SMOOTH will do the trick.
*Pop in a US Sim card (Tmobile, AT&T, H20, Family Mobile etc.)
*Open dialer app
*Dial *#*#4636#*#*
*Choose Phone Information
*Scroll down until you see the Network Type
*Click the box and choose GSM ONLY.!
And that's it folks. You will see the service bars appear after about 2-3 seconds. Set your apns if not already set and enjoy GSM carriers on your Sprint G2.!
Androtopia12 said:
*YOU MUST BE ROOTED AND USING AN AOSP ROM*
CM11/PA/PAC-MAN/LIQUID SMOOTH will do the trick.
*Pop in a US Sim card (Tmobile, AT&T, H20, Family Mobile etc.)
*Open dialer app
*Dial *#*#4636#*#*
*Choose Phone Information
*Scroll down until you see the Network Type
*Click the box and choose GSM ONLY.!
And that's it folks. You will see the service bars appear after about 2-3 seconds. Set your apns if not already set and enjoy GSM carriers on your Sprint G2.!
Click to expand...
Click to collapse
The easiest way.....just install any cloudyfa ROM with your SIM. You will get GSM network out of the box.
Sent from My LG G2 LS-980 or LG G Pad 7.0 V400
rogconnect said:
The easiest way.....just install any cloudyfa ROM with your SIM. You will get GSM network out of the box.
Sent from My LG G2 LS-980 or LG G Pad 7.0 V400
Click to expand...
Click to collapse
what is the exact link of the cloudyfa rom?
ghettowar04 said:
what is the exact link of the cloudyfa rom?
Click to expand...
Click to collapse
Just head over to G2 android development threads...he have 3-4 stock ROM ....G3....G2 stock...g flex etc. ..all GSM roms
Sent from My LG G2 LS-980 or LG G Pad 7.0 V400
rogconnect said:
Just head over to G2 android development threads...he have 3-4 stock ROM ....G3....G2 stock...g flex etc. ..all GSM roms
Sent from My LG G2 LS-980 or LG G Pad 7.0 V400
Click to expand...
Click to collapse
what is the direct link please>
so i insert the sprint sim to unlock, my carrier is sprint but line aint active im trying to unlock to set deal with a different network company
Has anyone been able to do this with the LS980 (Sprint phone) on T-mobile and get LTE/4G to work?
ghettowar04 said:
what is the direct link please>
Click to expand...
Click to collapse
here is one.. i think http://forum.xda-developers.com/showthread.php?t=2783192
Hi I'm new to g2 world. I have a ls980 and I live in Europe so I flashed g3 port that has working gsm sim cards. My problem is coming from n4 I can't live without aosp. My favorite rom is carbon, which I tried but couldn't connect to gsm. Anyone have any idea what to try? Thanks in advance.
Sent from my LG-LS980 using Tapatalk
It really works!
I didn't think it'd work at first, because of all the other unlocking methods out there, like changing carrier files, unlock codes, T-Mobile ROMs, but I can happily say it works I tried it with an old Metro pcs sim I had. I got the "No service" signal because it isn't activated, but at least its detecting the sim card Thanks for the info! Oh, & I was using the CloudyG3 ROM version 1.2 & it still worked
newtekz said:
Has anyone been able to do this with the LS980 (Sprint phone) on T-mobile and get LTE/4G to work?
Click to expand...
Click to collapse
No LTE, since the needed bands are missing from the phone. But yes, 4G (HSPA+). Several weeks now on Cloudyfa G3 ROM v1.2. Pick "WCDMA preferred" in the mobile network settings, and choose the T-Mobile APN without LTE, although the LTE one seems to work OK as well. If you have any issues kick-starting the GSM radio you can download Radio Switcher from the Play Store.
The only issue is that some of the T-Mobile towers haven't yet been "refarmed" or "unlocked", so on this device in that case you would only get 2G data. For example at home I get HSPA+, but at work only Edge/2G. Hopefully that will change in the coming weeks to months as T-Mobile continues to upgrade its towers. The same issue applies to a Sprint iPhone 4S and Republic Wireless Moto X that I unlocked and am running on T-Mobile as well.
Guys I'm new to this rom update business, I mean I have done plenty of windows phones but none of the newer androids.
I have an LG G2 32GB Sprint (bad esn), purchased from ebay, but I'm in the UK.
Any idea of how to get it working with the UK?
Links and instructions would be most helpful
Thanks in advance
U
BIGDADDY786 said:
Guys I'm new to this rom update business, I mean I have done plenty of windows phones but none of the newer androids.
I have an LG G2 32GB Sprint (bad esn), purchased from ebay, but I'm in the UK.
Any idea of how to get it working with the UK?
Links and instructions would be most helpful
Thanks in advance
Click to expand...
Click to collapse
Sorry cannot provide links I m on the go. First you need to check if you are on latest ota which is zvd. If you're on zvc root with latest iroot. If on zvd search the forum there is an apk which you just install to your phone and run it (called towelroot). It roots even without reboot. Then search the forum for ls980 permanent unlock and follow the guide. Just use any root explorer to copy the files, restart and you are unlocked but with no speed data icons on status bar. The other way, is after rooting, install autorec (search for it - it's tricky, you might brick). Autorec is needed to install custom recovery. Then just pick a rom from cloudifa (g3 port is great with no bugs). His roms are made for gsm and you will be already unlocked. If you prefer aosp based, only one that worked for me after changing some settings and restarting is Omni. Couldn't make carbon (discontinued), vanir and mahdi to work. They didn't even recognize that a sim was inserted. Before flashing a custom rom, make a full backup via custom recovery and make sure you get familiar with how you enter recovery and download mode with hardware key combination. Keep in mind there is always a chance to brick and then you will have to enter download mode and flash back to stock with lg tool. If you are confused ask any questions and I ll try to help when I get home on my pc. Did all above a week ago and ended with cloudifa g3 port and is working great so far (I'm in Greece).
http://forum.xda-developers.com/showthread.php?t=2655133
Permanent SIM Unlock for LS980 (OTA, APN) JB 4.2.2, KK 4.4.2
Sent from my LG-LS980 using Tapatalk
Sp_Ark said:
U
Sorry cannot provide links I m on the go. First you need to check if you are on latest ota which is zvd. If you're on zvc root with latest iroot. If on zvd search the forum there is an apk which you just install to your phone and run it (called towelroot). It roots even without reboot. Then search the forum for ls980 permanent unlock and follow the guide. Just use any root explorer to copy the files, restart and you are unlocked but with no speed data icons on status bar. The other way, is after rooting, install autorec (search for it - it's tricky, you might brick). Autorec is needed to install custom recovery. Then just pick a rom from cloudifa (g3 port is great with no bugs). His roms are made for gsm and you will be already unlocked. If you prefer aosp based, only one that worked for me after changing some settings and restarting is Omni. Couldn't make carbon (discontinued), vanir and mahdi to work. They didn't even recognize that a sim was inserted. Before flashing a custom rom, make a full backup via custom recovery and make sure you get familiar with how you enter recovery and download mode with hardware key combination. Keep in mind there is always a chance to brick and then you will have to enter download mode and flash back to stock with lg tool. If you are confused ask any questions and I ll try to help when I get home on my pc. Did all above a week ago and ended with cloudifa g3 port and is working great so far (I'm in Greece).
http://forum.xda-developers.com/showthread.php?t=2655133
Thanks very much for your help and advice, I can get as far as unlocking the device and it all works However, how do you enable data? If I can enable the data then I'll keep the normal ROM and use it
Also after installing a custom recovery, the autorec works great and I can understand the concept of it, but then when I flash with the cloudifa g3_1.2 it flashes but when the phone restarts it gets stuck (first time at 49%, then had to reflash using stock via LGFlashTool, then second time at the LG logo) so I have to go back to the stock rom, root it, unlock it and back to square one. Unsure what to do next?
Click to expand...
Click to collapse
BIGDADDY786 said:
Sp_Ark said:
U
Sorry cannot provide links I m on the go. First you need to check if you are on latest ota which is zvd. If you're on zvc root with latest iroot. If on zvd search the forum there is an apk which you just install to your phone and run it (called towelroot). It roots even without reboot. Then search the forum for ls980 permanent unlock and follow the guide. Just use any root explorer to copy the files, restart and you are unlocked but with no speed data icons on status bar. The other way, is after rooting, install autorec (search for it - it's tricky, you might brick). Autorec is needed to install custom recovery. Then just pick a rom from cloudifa (g3 port is great with no bugs). His roms are made for gsm and you will be already unlocked. If you prefer aosp based, only one that worked for me after changing some settings and restarting is Omni. Couldn't make carbon (discontinued), vanir and mahdi to work. They didn't even recognize that a sim was inserted. Before flashing a custom rom, make a full backup via custom recovery and make sure you get familiar with how you enter recovery and download mode with hardware key combination. Keep in mind there is always a chance to brick and then you will have to enter download mode and flash back to stock with lg tool. If you are confused ask any questions and I ll try to help when I get home on my pc. Did all above a week ago and ended with cloudifa g3 port and is working great so far (I'm in Greece).
http://forum.xda-developers.com/showthread.php?t=2655133
Thanks very much for your help and advice, I can get as far as unlocking the device and it all works However, how do you enable data? If I can enable the data then I'll keep the normal ROM and use it
Also after installing a custom recovery, the autorec works great and I can understand the concept of it, but then when I flash with the cloudifa g3_1.2 it flashes but when the phone restarts it gets stuck (first time at 49%, then had to reflash using stock via LGFlashTool, then second time at the LG logo) so I have to go back to the stock rom, root it, unlock it and back to square one. Unsure what to do next?
Click to expand...
Click to collapse
In order to enable data you have to check your apn settings. If there are no settings, try to set it manually (Google your carrier's apn settings). When you are done and you get data to work try a reboot to see if they stick. I think in the permanent unlock thread you can edit this file with the apn settings and add your carrier's ones. Also delete those 2 files so you can automatically have data after each reboot.
Now I didn't really understand what went wrong while trying to flash g3 port. Have you flashed the appropriate baseband? It's very important in order to boot. It's mentioned and there is a link as well in the op of g3 thread.
Sent from my LG-LS980 using Tapatalk
Click to expand...
Click to collapse
Bought this phone on eBay few days ago and I started checking around about how to unlock it(though it'd be simple as any other phones, but I guess I was wrong). Found few threads talking about how to unlock it for US GSM carriers but barely find any information about using it in Canada.
Looking to root\use a custom rom and read that the CloudG3 rom will actually GSM unlock the phone,but will it work as well for Canada(will be used on Telus network)
Thanks.
As long as the band's are supported it should work.
Sent from my HTCONE using XDA Free mobile app
There's a Rom on xda that converts the spring variant to the T-Mobile variant by flashing the Rom. It's basically a T-Mobile variant g2 cm11 Rom but with a Sprint boot.img and a few other Sprint files to make it boot. But if I'm not mistaken it has the T-Mobile radios in it. That should get you their full network experience.
Sent from my HTCONE using XDA Free mobile app
Think this thread might be dead but if I get a reply it'd be great. Will the OP method work on the latest CM12 nightly? Or does AOSP here refer to only the CM11 variant?
Currently not the Device Maintainer for the G2. I'm working with the G Flex community now. I'm pretty sure there's a CM12 nightly already released. Updates will be posted in whatever thread you originally downloaded it from
Sent from my LG-D959 using XDA Free mobile app
A bit of background on my device - I have a D855 from HK. I flashed the rooted Lollipop by @Skin1980 but decided to go back to KK. While on L, my LTE didn't work. Now that I've downgraded to KK, if I have the phone set to LTE/GSM/WCDMA, the phone will boot up with LTE working. As soon as I go into the Phone Info screen to change it to WCDMA preferred, it will go on H+. If I want to go back to LTE, the phone pick up the LTE signal for half a second and then lose it. The only way I can get it to get back on LTE is if I reboot the phone.
The reason I do this is because I get a better H+ signal in most places than I do the LTE signal so I leave it on H+ to conserve battery life as I'm mostly on wifi and I change it to LTE when I need to download large files when I'm not on wifi.
I have already flashed the KK Modem file that was provided by @Skin1980. This never happened before I upgraded to L and then downgraded back to KK. Does this happen to anyone else who has downgraded and does anyone know how to fix this?
Try flashing the kk modem a couple more times, for some reason modems can be a bit tricky and dont always flash properly, can some times take several flashes before they seem to stick
if this doesnt work then maybe the modem is for the international d855 and not for the hk rom your using?
Sent from my LG-D855 using XDA Free mobile app
rosso22 said:
Try flashing the kk modem a couple more times, for some reason modems can be a bit tricky and dont always flash properly, can some times take several flashes before they seem to stick
if this doesnt work then maybe the modem is for the international d855 and not for the hk rom your using?
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
I tried installing it several times but it didn't help. I wasn't aware there was more than one modem for different regions. I was always on an HK modem before and it works here in the UK. But after I applied the KK modem skin1980 provided for downgrading to KK from L, I started seeing this issue.
If I turn the radio off and then back on, it'll lock onto an LTE signal some of the time. But if I set the modem to LTE only, it will find the LTE signal for half a second, then lose it and cannot find it again....
Well it sounds like the same sort of problem some get using the lp modem on kk rom, maybe try installing a custom rom like cloudy if your models supported, failing that try a full wipe and flash kdz again
Sent from my LG-D855 using XDA Free mobile app
Japultra said:
A bit of background on my device - I have a D855 from HK. I flashed the rooted Lollipop by @Skin1980 but decided to go back to KK. While on L, my LTE didn't work. Now that I've downgraded to KK, if I have the phone set to LTE/GSM/WCDMA, the phone will boot up with LTE working. As soon as I go into the Phone Info screen to change it to WCDMA preferred, it will go on H+. If I want to go back to LTE, the phone pick up the LTE signal for half a second and then lose it. The only way I can get it to get back on LTE is if I reboot the phone.
The reason I do this is because I get a better H+ signal in most places than I do the LTE signal so I leave it on H+ to conserve battery life as I'm mostly on wifi and I change it to LTE when I need to download large files when I'm not on wifi.
I have already flashed the KK Modem file that was provided by @Skin1980. This never happened before I upgraded to L and then downgraded back to KK. Does this happen to anyone else who has downgraded and does anyone know how to fix this?
Click to expand...
Click to collapse
delete the lteconfig files from system/app or system/privapp
suljo94 said:
delete the lteconfig files from system/app or system/privapp
Click to expand...
Click to collapse
Thanks for the suggestion but unfortunately, this didn't work.
rosso22 said:
Well it sounds like the same sort of problem some get using the lp modem on kk rom, maybe try installing a custom rom like cloudy if your models supported, failing that try a full wipe and flash kdz again
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
That's my last resort, but I guess I'll have to try it. Thanks.
rosso22 said:
Well it sounds like the same sort of problem some get using the lp modem on kk rom, maybe try installing a custom rom like cloudy if your models supported, failing that try a full wipe and flash kdz again
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
I just did a CSE flash and the problem still persists.... Are there any other options I haven't thought of to do?
Dunno then, try the custom rom route maybe, or possibly its the kdz your using, might be wrong one, when i went back to stock before i downloaded mine from the lg site where you put your imei number in so you get the exact firmware for your phone, not sure of the link for the site though sorry matey
Sent from my LG-D855 using XDA Free mobile app
rosso22 said:
Dunno then, try the custom rom route maybe, or possibly its the kdz your using, might be wrong one, when i went back to stock before i downloaded mine from the lg site where you put your imei number in so you get the exact firmware for your phone, not sure of the link for the site though sorry matey
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
That's actually the version I flashed. Thanks for your help.
Hi, this a weird problem for my new e980, i flashed properly the e980 at&t rom, and now i dont have signal, i tried flashing modem.img from here and nothing, still no signal, also tried to flash the telcel kdz and nothing, my IMEI is ok, but i dont have signal, is like is trying to finding signal, sim card is ok, working in other phone, please, somebody can help me please?
Come on guys, hope one of you can help me, this is happening after flashed a 5.0 lollipop for F240K, I think, I converted my e980 to F240K, but now the signal isn't working even his own baseband, I really need your help guys, please!!!
Have you tried going back to stock jb?
Start from jb. It's the most stable version we have.
Then you can root and install twrp from flashify. It's the most up to date recovery we have. Forget about the others because they can be buggy.
After that you can choose whichever room suits you. But I'd recommend SlimLP...
g0at1 said:
Have you tried going back to stock jb?
Start from jb. It's the most stable version we have.
Then you can root and install twrp from flashify. It's the most up to date recovery we have. Forget about the others because they can be buggy.
After that you can choose whichever room suits you. But I'd recommend SlimLP...
Click to expand...
Click to collapse
I tried, no signal, I updated it manual via the software to KK also for test and nothing.
PD: I tested the E989 modem from another guy and now I have signal, but only WCDMA and GSM, I don't have LTE, also the 3G, H and H+ aren't working properly. Help please
carl_villa1 said:
I tried, no signal, I updated it manual via the software to KK also for test and nothing.
PD: I tested the E989 modem from another guy and now I have signal, but only WCDMA and GSM, I don't have LTE, also the 3G, H and H+ aren't working properly. Help please
Click to expand...
Click to collapse
You'll probably have to flash Telcel firmware first (E980H variant I think, not sure if Telcel or something else), then AT&T firmware to get your network back. Also, you must do a full (CSE, if I'm not wrong, haven't started LGFlashTool in a while ) flash, with complete internal wipe - "update" flash just changes system, boot and recovery, not modem/firmware images which are ones you need... Also, you MAY try flashing madmack's modem (it's ripped from AT&T E980 firmware) before flashing OEM images...
I really don't understand why are you people messing with modem images and other stuff like that at all... especially without backups. Last year I had to mess with nearly 10 phones from my friends/associates, because they got their modem/efs images broken/corrupted trying to flash something which isn't made for their device...
Actually did it, not working with AT&T rom, Tried with telcel then I flashed AT&T rom and nothing, nothing is working for me, tried the madmack modem file and nothing works. still no signal
Have you done a FULL flash? Are you sure you have E980 variant (difference between E98x variants is literally in modem firmwares)? This more looks like you have flashed wrong stock firmware.
ShadySquirrel said:
Have you done a FULL flash? Are you sure you have E980 variant (difference between E98x variants is literally in modem firmwares)? This more looks like you have flashed wrong stock firmware.
Click to expand...
Click to collapse
Shady, I really apreciate your help, thanks for answer, my friend sell me that phone, he said is a E980, but after see the imei is a E981h version for argentina where I live, before flash the korean lollipop, my 4G works perfect, now I dont have signal, I tried the E980 and well, not signal, I tried E981h too because is a variant from south america too and maybe can work and actually is the real stock firmware for my phone, no signal, nothing.. I tested the phone with 2 firmwares from E989 (1 from Brazil the other one is from CHILE) and is working but only WCDMA 3G and sometimes the signal drops and I only have 16gbs for storage.
More clear, this is my summary.
1) E980 Firmware from AT&T, Telcel and Panama = No signal
2) E981h Firmware for my E981h, Stock Retail and Movistar Telefonica KitKat and JellyBean = NO SIGNAL
3) E989 Firmware from Brazil Retail and Chile Claro = Just WCDMA and signal drops.
4) Custom ROMs? Just tried the CloudyGX 1.0 with E980 patch and E988 just for test = NO SIGNAL
I can't find the problem, also my phone was in the service before this and was totally useless for them, but I think these guys wasn't too profesional for be honest, i'm pretty sure.
carl_villa1 said:
Shady, I really apreciate your help, thanks for answer, my friend sell me that phone, he said is a E980, but after see the imei is a E981h version for argentina where I live, before flash the korean lollipop, my 4G works perfect, now I dont have signal, I tried the E980 and well, not signal, I tried E981h too because is a variant from south america too and maybe can work and actually is the real stock firmware for my phone, no signal, nothing.. I tested the phone with 2 firmwares from E989 (1 from Brazil the other one is from CHILE) and is working but only WCDMA 3G and sometimes the signal drops and I only have 16gbs for storage.
More clear, this is my summary.
1) E980 Firmware from AT&T, Telcel and Panama = No signal
2) E981h Firmware for my E981h, Stock Retail and Movistar Telefonica KitKat and JellyBean = NO SIGNAL
3) E989 Firmware from Brazil Retail and Chile Claro = Just WCDMA and signal drops.
4) Custom ROMs? Just tried the CloudyGX 1.0 with E980 patch and E988 just for test = NO SIGNAL
I can't find the problem, also my phone was in the service before this and was totally useless for them, but I think these guys wasn't too profesional for be honest, i'm pretty sure.
Click to expand...
Click to collapse
Custom ROMs won't do a thing because they are using firmware images on your modem partition.
IMEI says it's E981H Argentina, but it doesn't work with that firmware? What the hell... What's written on your phone's case? There is a model mark on the housing, after you remove back panel. I have E988 (Open TW variant), markings say E988/E989. In the end, ask your friend where he/she got it, that may help identifying it...
ShadySquirrel said:
Custom ROMs won't do a thing because they are using firmware images on your modem partition.
IMEI says it's E981H Argentina, but it doesn't work with that firmware? What the hell... What's written on your phone's case? There is a model mark on the housing, after you remove back panel. I have E988 (Open TW variant), markings say E988/E989. In the end, ask your friend where he/she got it, that may help identifying it...
Click to expand...
Click to collapse
He sends me the box also, is in my house now, I'm working at the moment, he got the phone in a normal store, is 100% original, let me check the model inside of the phone.
EDIT: its says "E980_0805"
carl_villa1 said:
He sends me the box also, is in my house now, I'm working at the moment, he got the phone in a normal store, is 100% original, let me check the model inside of the phone.
EDIT: its says "E980_0805"
Click to expand...
Click to collapse
This may be risky, but you already flashed F240K firmware and kept your device alive. Have you tried flashing E988 firmwares?
ShadySquirrel said:
This may be risky, but you already flashed F240K firmware and kept your device alive. Have you tried flashing E988 firmwares?
Click to expand...
Click to collapse
Is my first time with an LG Phone, is a really weird problem for me at least, Never tried with a E988 Firmware, what firmware is good for flash? just asking because you have E988 and probably you know which one is good.
carl_villa1 said:
Is my first time with an LG Phone, is a really weird problem for me at least, Never tried with a E988 Firmware, what firmware is good for flash? just asking because you have E988 and probably you know which one is good.
Click to expand...
Click to collapse
I'm using E988_V10 firmwares for TWN variants, best base for my device, especially since I'm using AOSP/CM roms
ShadySquirrel said:
I'm using E988_V10 firmwares for TWN variants, best base for my device, especially since I'm using AOSP/CM roms
Click to expand...
Click to collapse
Got it, I'm going to test in few hours, I'm working now. Thanks!
ShadySquirrel said:
I'm using E988_V10 firmwares for TWN variants, best base for my device, especially since I'm using AOSP/CM roms
Click to expand...
Click to collapse
Tried, with the E988 Rom only works GSM.
EDIT: Flashed argentinian MODEM e981h and i got 3g for first time but drop fast.
carl_villa1 said:
Tried, with the E988 Rom only works GSM.
EDIT: Flashed argentinian MODEM e981h and i got 3g for first time but drop fast.
Click to expand...
Click to collapse
Weird, E988 is basically international one, should work everywhere. Check preferred network type in network settings.
ShadySquirrel said:
Weird, E988 is basically international one, should work everywhere. Check preferred network type in network settings.
Click to expand...
Click to collapse
Yes, works but only GSM, no WCDMA and 4g, but I flashed the argentinian modem and i get a low WCDMA, is like the signal is very low in that rom, but not 4G or GSM.
Yes, I checked the preferred network in #*#*4636#*#*# and only works with WCDMA also tried the change the band in that menu but was useless, signal drops and 3G isn't working. Also tried in the options of the phone and the same result.
Tried the 3845#*988#* for configurate baseband and no luck. :l this is real a good problem, but I can confirm, the E988 at least works the argentinian modem with WCDMA but signal drops fast.
carl_villa1 said:
Yes, works but only GSM, no WCDMA and 4g, but I flashed the argentinian modem and i get a low WCDMA, is like the signal is very low in that rom, but not 4G or GSM.
Yes, I checked the preferred network in #*#*4636#*#*# and only works with WCDMA also tried the change the band in that menu but was useless, signal drops and 3G isn't working. Also tried in the options of the phone and the same result.
Tried the 3845#*988#* for configurate baseband and no luck. :l this is real a good problem, but I can confirm, the E988 at least works the argentinian modem with WCDMA but signal drops fast.
Click to expand...
Click to collapse
Have you tried to download your firmware from lg website?
Try to Google it. There might be tutorials telling you how to do this using your imei number. Then, you'll find the correct firmware.
Remember, you should use an LG website link to be secure in the use of your imei.
Edit: try that link
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=<MYIMEI>
Note that you have to substitute MYIMEI for your imei. I'm not sure if you have to keep the brackets. So try both possibilities and see which works.
Edit 2: now I remembered all the steps.
Once you insert the imei without brackets you will have info on your firmware. Notice that in the central area of the page you have a link that ends in .kdz
Copy that link and insert it in your browser's address bar. That will prompt you to download your correct firmware.
That firmware will most likely be E98120X... Or the KK version...
After downloading it, change the 20 in the link for a 10...
Doing this you should be able to download the JB version. This is the most stable version for our devices (the KK version has a bug on the modem that keeps the device awake when it shouldn't).
If you succeed, flash the JB version, the one with the number 10 using the CSE option in the flash tool.
After that, you should be up and running and able to flash any custom rom without the risk of signal drops.
Oh, have in mind that if you want to use 4g you will have signal drops. This is also a bug of our devices. It works best in 3g. Every time you have to reboot, change from 4g to 3g, when signal is back on change again to 4g and you'll have it working with few hiccups...
Don't forget to keep backups of your firmware and report if you succeed.
g0at1 said:
Have you tried to download your firmware from lg website?
Try to Google it. There might be tutorials telling you how to do this using your imei number. Then, you'll find the correct firmware.
Remember, you should use an LG website link to be secure in the use of your imei.
Edit: try that link
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=<MYIMEI>
Note that you have to substitute MYIMEI for your imei. I'm not sure if you have to keep the brackets. So try both possibilities and see which works.
Edit 2: now I remembered all the steps.
Once you insert the imei without brackets you will have info on your firmware. Notice that in the central area of the page you have a link that ends in .kdz
Copy that link and insert it in your browser's address bar. That will prompt you to download your correct firmware.
That firmware will most likely be E98120X... Or the KK version...
After downloading it, change the 20 in the link for a 10...
Doing this you should be able to download the JB version. This is the most stable version for our devices (the KK version has a bug on the modem that keeps the device awake when it shouldn't).
If you succeed, flash the JB version, the one with the number 10 using the CSE option in the flash tool.
After that, you should be up and running and able to flash any custom rom without the risk of signal drops.
Oh, have in mind that if you want to use 4g you will have signal drops. This is also a bug of our devices. It works best in 3g. Every time you have to reboot, change from 4g to 3g, when signal is back on change again to 4g and you'll have it working with few hiccups...
Don't forget to keep backups of your firmware and report if you succeed.
Click to expand...
Click to collapse
Hi, the 10 version isnt available in that web using my imei, the only one is from carrier, Telefonica Movistar, I tried with that and not luck.
Edit: got it via google, I'm going to test in few mins.
carl_villa1 said:
Hi, the 10 version isnt available in that web using my imei, the only one is from carrier, Telefonica Movistar, I tried with that and not luck.
Edit: got it via google, I'm going to test in few mins.
Click to expand...
Click to collapse
Good. Now that you know the exact "name" of your rom you can Google the JB version (the one with number 10).
Hi Guys,
Spend a bunch of time with AT&T trying to get this phone on the data network here in the USA. When the phone first boot I can get on the data network for about 15 seconds and then it seems to get blocked or something.
I'm just wondering if this is because its the fake global rom? 9.6.4.0.
It shows as connected and on 4G for AT&T but only calls and texts work, no data. AT&T said that the IMEI number was showing incorrectly and that they had to add it to their system, so it sounds like this is a carrier issue and not ROM issue but just wanted to be sure.
Also as far as the sim card slots, I wanted to use an sd card so that means I need to put the sim in the 2nd sim slot. In the phone it shows 2 IMEI numbers, one of which is 14 characters and the other is 15 characters. AT&T made it sound like a 14 character IMEI was invalid in the US. The odd part is that the IMEI numbers changes slots as I move the SIM card around. the 14 character IMEI number will move to where ever the SIM is installed. Not sure if this matters or not either.
If I reboot the phone I get data for like 15 seconds again and then is stops.
Any ideas on this one? Just wanted to make sure this isn't something up with the fake rom installed (phone was already unlocked when I got it)
So just for good measure I went ahead and flashed the global 9.6.6.0 rom that was release today.
AT&T cannot seem to get this phone activated on their network at all... I get 4G showing in the notification bar, but I cannot get any voice or data.
I know some of you guys have this phone running on AT&T, are you using global roms? Could that have anything to do with me not getting signal? Is it worth trying to flash a chinese rom as well?
I sort of feel this is a carrier issue, but I am certainly not sure.
omniphil said:
So just for good measure I went ahead and flashed the global 9.6.6.0 rom that was release today.
AT&T cannot seem to get this phone activated on their network at all... I get 4G showing in the notification bar, but I cannot get any voice or data.
I know some of you guys have this phone running on AT&T, are you using global roms? Could that have anything to do with me not getting signal? Is it worth trying to flash a chinese rom as well?
I sort of feel this is a carrier issue, but I am certainly not sure.
Click to expand...
Click to collapse
Did you try the volte enabler in dialer? *#*#86583#*#*
Also, are your apn settings correct?
The modem of the global rom is currently broken, nothing will help.
I suggest installing 9.6.11.0 China stable (no ARB) from fastboot and then downgrade to 9.6.6.0 Global using the antirollback method
your modem will work perfectly
omer919 said:
The modem of the global rom is currently broken, nothing will help.
I suggest installing 9.6.11.0 China stable (no ARB) from fastboot and then downgrade to 9.6.6.0 Global using the antirollback method
your modem will work perfectly
Click to expand...
Click to collapse
Ok, I will certainly give that a whirl. It certainly does feel like the modem is not working...
Do I have to downgrade to 9.6.6.0? No harm in staying on the 9.6.11.0 china rom? (Or does it not support English at all?)
I have been unsuccessful getting flashing to work over fastboot, so I must be missing something there. Can I just flash via TWRP? that's already installed and working?
opasha said:
Did you try the volte enabler in dialer? *#*#86583#*#*
Also, are your apn settings correct?
Click to expand...
Click to collapse
Yup, I did try both of those....
omniphil said:
Ok, I will certainly give that a whirl. It certainly does feel like the modem is not working...
Do I have to downgrade to 9.6.6.0? No harm in staying on the 9.6.11.0 china rom? (Or does it not support English? at all)
I have been unsuccessful getting flashing to work over fastboot, so I must be missing something there. Can I just flash via TWRP? that's already installed and working?
Click to expand...
Click to collapse
I have been using China Stable 9.6.11.0. and it's 95% english. Works fine as a daily driver.
4z4 said:
I have been using China Stable 9.6.11.0. and it's 95% english. Works fine as a daily driver.
Click to expand...
Click to collapse
Excellent, Ok, I will flash the 9.6.11.0 in TWRP and hopefully that makes the mode work again.
Thank you guys!
Ok, I now have a working radio after flashing the 9.6.11.0 !!!!! Thank you guys! Data and Voice are now working on AT&T.
So if I wanted to go to the global 9.6.6.0, can i just flash that over this in TWRP?
omniphil said:
Ok, I now have a working radio after flashing the 9.6.11.0 !!!!! Thank you guys! Data and Voice are now working on AT&T.
So if I wanted to go to the global 9.6.6.0, can i just flash that over this in TWRP?
Click to expand...
Click to collapse
Yes, that's what omer919 said would work.
opasha said:
Yes, that's what omer919 said would work.
Click to expand...
Click to collapse
Sounds too easy, but i'll give it a try, lol....
I figure that encrypted partition will be problematic...
I still have the issue where TWRP never stays, I have to flash it via ADB everytime i want to use it. Anf then it only works once and is gone.
EDIT, yeah, that certainly didnt work. Phone boots to a password screen, I really hate encryption and this is why...
Try this:
https://forum.xda-developers.com/mi-max-3/help/help-t3839214
samkatta said:
Try this:
https://forum.xda-developers.com/mi-max-3/help/help-t3839214
Click to expand...
Click to collapse
I'm not getting anything like that. I just did a format of the data and flashed 9.6.6.0. Its just sitting at the android loading screen now, so that didnt work either.
But at least I know that the chinese rom does work. That's a plus, now just to get over to global rom somehow...
wow, it works with att? u getting H or LTE? what city u in? i want to check the city bands
Again, your modem is broken, nothing will help on software part.
if you want china rom, with china bloatware no multilanguage and GAPPS not working good go for it and just stay on china stable.
if you want to install global rom again while having a working modem follow the guide: here
ryanllts said:
wow, it works with att? u getting H or LTE? what city u in? i want to check the city bands
Click to expand...
Click to collapse
I'm in New Hampshire. Its just 4G in this area, but I suspect it will connect to LTE in the appropriate areas.
I have a question regarding 4g. My device shows only LTE instead of 4g. Seems to have quick connection. In theory they are the same but just wondering if anyone having the same?
shadow78 said:
I have a question regarding 4g. My device shows only LTE instead of 4g. Seems to have quick connection. In theory they are the same but just wondering if anyone having the same?
Click to expand...
Click to collapse
I go between 4G and LTE areas (home and work). The phone shows the appropriate connection at each location, They are definitely different things.
omniphil said:
I go between 4G and LTE areas (home and work). The phone shows the appropriate connection at each location, They are definitely different things.
Click to expand...
Click to collapse
Thx what fw are you using? I remember when I had the chinese stable and even before the EU I had 4g showing up. But now even when I go to settings I can only chose LTE and 3g. No 4g option.
shadow78 said:
Thx what fw are you using? I remember when I had the chinese stable and even before the EU I had 4g showing up. But now even when I go to settings I can only chose LTE and 3g. No 4g option.
Click to expand...
Click to collapse
I had the 9.6.4.0 and the 9.6.6.0 global roms, those both had broken modems, no internet access.
I also tried the trick of putting on the chinese rom 9.6.11.0 and then flashing over to the firmware less 9.6.6.0 global. Still broken modem.
The only way I can get working data is to use a chinese rom. These have all worked.
I was on 8.8.9 miui 10, which I then upgraded to 8.9.6. After that I dirty flashed the xiaomi.eu 8.9.6 rom over that. All of those have working radios.
I guess i'm not too concerned about flashing the newer anti-rollback roms anymore, since there is a guide on how to roll back if you need to. But so far on the chinese miui 10 roms the only issue I seem to have is Android Auto not working and Textra (3rd party text app) not keeping its notification alive.