Hi,
I was an idiot and accidentally flashed the LS970_ZERO_EFS.zip without knowing what I was doing. I eventually used DFS to be able to set my IMEI and MEID, which helped get my phone to a state where hands-free activation, prl upgrades, etc. work fine now. All non-cell activity also works fine, but anything that uses cell towers fails. PRL Upgrades and Hands-Free activation work fine. When someone calls me, my phone doesn't ring but I eventually do get a 'missed call' indicator.
I read the 'Backup/Restore/Repair Your EFS Partition' thread, which is how I figured out to how to use DFS to set my IMEI and MEID, but I'm unable to do the 'For 1X/3G working - use DFS' portion of it because I don't have my AAA Shared Secret password and my HA Shared Secret password.
Finally, to make matters even worse, I'm not on Sprint; I'm on an MVNO of Sprint called RingPlus.
What should I do to be able to get cell access working again? Any help at all would be appreciated. Thanks in advance to anyone that can help out! :good:
JusRelax said:
Hi,
I was an idiot and accidentally flashed the LS970_ZERO_EFS.zip without knowing what I was doing. I eventually used DFS to be able to set my IMEI and MEID, which helped get my phone to a state where hands-free activation, prl upgrades, etc. work fine now. All non-cell activity also works fine, but anything that uses cell towers fails. PRL Upgrades and Hands-Free activation work fine. When someone calls me, my phone doesn't ring but I eventually do get a 'missed call' indicator.
I read the 'Backup/Restore/Repair Your EFS Partition' thread, which is how I figured out to how to use DFS to set my IMEI and MEID, but I'm unable to do the 'For 1X/3G working - use DFS' portion of it because I don't have my AAA Shared Secret password and my HA Shared Secret password.
Finally, to make matters even worse, I'm not on Sprint; I'm on an MVNO of Sprint called RingPlus.
What should I do to be able to get cell access working again? Any help at all would be appreciated. Thanks in advance to anyone that can help out! :good:
Click to expand...
Click to collapse
This might help you. It is for htc, but it mentions ringplus and pretty much fits your issue.
http://forum.xda-developers.com/showthread.php?t=2438711
dopy25 said:
This might help you. It is for htc, but it mentions ringplus and pretty much fits your issue.
http://forum.xda-developers.com/showthread.php?t=2438711
Click to expand...
Click to collapse
Thanks! I will try moving my account to a dummy phone, and moving it back afterward. Hopefully that will force the 'initial handshake' that they mention in that article. I'll post my results after I try it out (probably sometime this weekend).
THIS!
OMG this is almost exactly where I am at. I too am on RingPlus, but my journey to a screwed EFS was different, I used Framaroot to root my phone so I could have Titanium backup and other root functions. It was great for a couple of weeks, then one morning I my network connectivity just turned off, that was a little over a week ago. I tried tech support, but eventually figured out that it wasn't my service provider, especially when I looked into my "phone identity" settings and saw everything except my ICCID and PRL were zeroed out.
I was thinking about flashing the clean EFS, but I can't really find out how to do that, I see instructions for it in the EFS restore thread, but all it says is "flash it" and I'm having a hard time figuring out how to do that.
Also, I can't get my phone to root anymore, I tried Framaroot again, and this thread "Universal Root" http://forum.xda-developers.com/showthread.php?p=38886073#post38886073 It says it worked, but Titanium Backup says it still doesn't have root.
And to top it off, my play store says no connection (tried wiping cache and different versions, date settings, can't get it).
Right now, I'm working with an almost useless phone.
Molson01 said:
OMG this is almost exactly where I am at. I too am on RingPlus, but my journey to a screwed EFS was different, I used Framaroot to root my phone so I could have Titanium backup and other root functions. It was great for a couple of weeks, then one morning I my network connectivity just turned off, that was a little over a week ago. I tried tech support, but eventually figured out that it wasn't my service provider, especially when I looked into my "phone identity" settings and saw everything except my ICCID and PRL were zeroed out.
I was thinking about flashing the clean EFS, but I can't really find out how to do that, I see instructions for it in the EFS restore thread, but all it says is "flash it" and I'm having a hard time figuring out how to do that.
Also, I can't get my phone to root anymore, I tried Framaroot again, and this thread "Universal Root" http://forum.xda-developers.com/showthread.php?p=38886073#post38886073 It says it worked, but Titanium Backup says it still doesn't have root.
And to top it off, my play store says no connection (tried wiping cache and different versions, date settings, can't get it).
Right now, I'm working with an almost useless phone.
Click to expand...
Click to collapse
If you unlocked your phone with FreeGee, it made a backup of your EFS. Put those files in the flash efs zip and you should be set
Sent from my LG-LS970 using XDA Premium 4 mobile app
Thanks, but nope, I wasn't that smart.
engine95 said:
If you unlocked your phone with FreeGee, it made a backup of your EFS. Put those files in the flash efs zip and you should be set
Sent from my LG-LS970 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks, but I used the Framaroot APK and that was it. I kinda jumped in before I really read/understood what I was doing. I had no idea that information could be wiped.
I have been trying to understand how the whole system is setup and at which points modifications can/should be made.
I don't think I've ever unlocked the bootloader, which is what I thought FreeGee was for, I just used Framaroot to root it and thought I was good. Then 0000000000.
I have been trying to figure out if I really need to flash the ZERO EFS, or if I can just jump to using DFS to modify the ESN etc. It seems like my EFS is already zeroed. (I'd ask in the proper thread, but I'm working my way up to 10 posts...).
Thanks for the reply, there are really so many resources here it is incredible, I just need to remember to not do stupid crap (too late!).
Molson01 said:
Thanks, but I used the Framaroot APK and that was it. I kinda jumped in before I really read/understood what I was doing. I had no idea that information could be wiped.
I have been trying to understand how the whole system is setup and at which points modifications can/should be made.
I don't think I've ever unlocked the bootloader, which is what I thought FreeGee was for, I just used Framaroot to root it and thought I was good. Then 0000000000.
I have been trying to figure out if I really need to flash the ZERO EFS, or if I can just jump to using DFS to modify the ESN etc. It seems like my EFS is already zeroed. (I'd ask in the proper thread, but I'm working my way up to 10 posts...).
Thanks for the reply, there are really so many resources here it is incredible, I just need to remember to not do stupid crap (too late!).
Click to expand...
Click to collapse
Framaroot was set up as a temporary root. It says that in our root guide. Some use it all the time with no issues. I played it safe with the Universal Root.
The EFS was discovered by autoprime I think, and steps were taken to fix that. Follow his guide's to hopefully fix it.
I wouldn't Zero out anything that is left. They may help you or Sprint fix it.
You're not stupid. LG just has different things to worry about compared to HTC, Samsung etc.
Good luck with everything.
Sent from my LG-LS970 using XDA Premium 4 mobile app
Temp use of a Sprint ESN/MEID for service swap?
Does anyone out there have a Sprint ESN/MEID they wouldn't mind "loaning" me for a couple of hours so I can attempt to "swap" service out and back to my device.
The CSR I'm dealing with says that doing a swap is better than cancel/reactivate because apparently with a cancel/reactivate they actually close the account and any (prepaid) funds in there get eaten (kind of bull**** that they can't do it from some admin position that would stop that from happening, but whatever).
Thanks.
NM
Molson01 said:
Does anyone out there have a Sprint ESN/MEID they wouldn't mind "loaning" me for a couple of hours so I can attempt to "swap" service out and back to my device.
The CSR I'm dealing with says that doing a swap is better than cancel/reactivate because apparently with a cancel/reactivate they actually close the account and any (prepaid) funds in there get eaten (kind of bull**** that they can't do it from some admin position that would stop that from happening, but whatever).
Thanks.
Click to expand...
Click to collapse
Decided to abandon this line, bought an LG Tribute for $40 and swapped to that. Super small internal memory, but other than that, not a bad phone really.
Related
I jumped the gun the other day and installed "Temple Run", but it was the just the latest 'fake' version: When I went to go uninstall it, I noticed two additional apps that it must've auto-installed as well (some TV streaming app and some 'rate it' app). I immediately uninstalled them as well, and never used either of those apps whatsoever.
Ever since then, I've been getting a BUNCH of random calls (from two different local area codes) from numbers I don't know. I was curious about them, so I looked them up: Every single one of them is a Harshad number.
I don't know what to do:
I haven't answered one yet, but somehow, someway, it seems like they're trying to get more information.
Btw, I know it's from installing that fake app because I actually put it on my girlfriend's phone too, and she just started getting the same random calls too.
Anybody else dealt with this, or know of anything I can do? ( I really don't wanna change my number: I've had it for about 10 years).
Help!
Do a full wipe and then register on the National No Call list.
That's a bummer to hear.
Personally, i'm a bit surprised that so many people (in the news-blog-osphere) are falling for the fake-version scam, with this app.
I've played it and I don't see the hype. Literally boring as f*ck.
Sent from my calculator watch.
Explain what you mean about it being a "Harshad number?"
And when did you install it on your girlfriend's phone versus yours? I'm not convinced that that alone is proof that it was a result of installing the app.
Even so, I can't imagine what help we could provide. There's nothing software-related you can do to get someone to stop calling you. But I imagine after a little time with no results they'll give up.
first odin a full stock tar.
then do a ##786# reset. you need msl for this.
786 reset WILL wipe your internal storage(not SD card).
format sd card for good measure. backup only files you know are safe.. pics.. etc.
hopefully your number isn't on some sort of list.. its possible there's a background service sending sms etc.. the wipe should take care of it all. it may be extreme.. but better safe than sorry
TurboFool said:
Explain what you mean about it being a "Harshad number?"
And when did you install it on your girlfriend's phone versus yours? I'm not convinced that that alone is proof that it was a result of installing the app.
Even so, I can't imagine what help we could provide. There's nothing software-related you can do to get someone to stop calling you. But I imagine after a little time with no results they'll give up.
Click to expand...
Click to collapse
A harshad number, by definition, is any number whose sum of total digits is evenly divisible into the original number.
When dealing with harshad numbers that are phone numbers, they are free, untraceable numbers that are commonly used by scammers/phishers to get your personal information.
I installed the app on her phone about two minutes after I put it on mine: she was leaving for work, and I hadn't even run the app on my phone yet: neither of our phones have ever had the issue before...so I'm convinced it was from installing it.
autoprime said:
first odin a full stock tar.
then do a ##786# reset. you need msl for this.
786 reset WILL wipe your internal storage(not SD card).
format sd card for good measure. backup only files you know are safe.. pics.. etc.
hopefully your number isn't on some sort of list.. its possible there's a background service sending sms etc.. the wipe should take care of it all. it may be extreme.. but better safe than sorry
Click to expand...
Click to collapse
Correct and a nightmare. Sorry dude. I mean the damage is done in some ways.
Sent from my SPH-D710 using XDA App
Ok... I'm ready to ask for help... I'm new enough to this that I'm willing to say please go easy on me.
So Im working with a rooted Epic 4G Touch. It's the EL29 root that seems highly recommended, nothing special, no special considerations there.
So moving along..
I accessed the efs with qpst to pull 0 and 1943. Locked, but visible.
Continued with the open sesame door instruction, rebooted, and tried to re-access the efs through the same manner (qpst efs explorer). Nothing. EFS explorer can't see, won't find it, nothing. Completely hidden. Including the open sesame door folder. It (the efs) hasn't been deleted. The phone still accesses all the normal information (Phone reports a normal imei, bluetooth mac, wireless mac, etc). But to save my life, I personally cannot access this directory to even see, let alone pull these two files for any type of modification. Nothing. I tried root file managers including Root Explorer as well in following other guides, nothing. DFS can access part of the hidden efs that I cant see with EFS explorer, (basically anything that wasn't locked before the directory became completely hidden - including the created open sesame door folder, [deleting it does not fix the issue], but nothing that was locked - such as the 0 and 1943 files I was seeking in the first place - is visible to DFS), however, DFS can access the information through NV Read range and the information is good, (that is, its accurate from the information I have for the device) (but its just the demo so it can't be edited directly, but it does tell me I suppose that the information is there and valid still?).
Anyway, so this is basically what's going on. I'm just trying to put this phone on metro, it seemed fairly straightforward.
I suppose the core questions are
1.) WHAT THE $&#@ happened to the efs, and is there something I can do to.. I guess normalize this? Any answers as to what, why, or recourse are humbly appreciated.
2.) Is there another route to accomplishing what I'm trying to do? I was contemplating reading the information from DFS (read range 0-1 and 1943-1944 which spit out item 0 and item 1943 respectively) saving these and editing them manually with a hex editor and then importing them back in the same way through DFS, since you can save them, but I don't know if the import is going to work, or even if that particular procedure will work. Is there another another method someone is willing to point out? I feel like Im drastically overcomplicating this...
I've been at this for awhile now... Any and all help is most graciously appreciated.
2.) Is there a simpler route to accomplish what I'm trying to do? Like shouldn't I be able to use CDMA workshop
Other questions that may be asked...
Do I have an efs backup... A proper backup? I'm going to say no. Not with all the content that I know is in there, though I have been able to pull what I can see (which is everything that dfs can see minus the locked items dfs won't show me -- which is more than what root explorer can see... if that makes any sense at all...)
You cannot try the open sesame door method on this phone. I think it is only used on htc phones. What you are trying to accomplish is not something that can be talked about due to it not being legal in some cases. The best way to do it is having the epic touch's esn added to metro then flash for data and mms.. There is a easy method to do it you just have to search
chivasjose09 said:
You cannot try the open sesame door method on this phone. I think it is only used on htc phones. What you are trying to accomplish is not something that can be talked about due to it not being legal in some cases. The best way to do it is having the epic touch's esn added to metro then flash for data and mms.. There is a easy method to do it you just have to search
Click to expand...
Click to collapse
Some cases unless I'm mistaken being the operative phrase. If I've honestly broken a rule already I will withdraw completely with my apologies. But if not, I am very much perplexed. Yes, I did eventually figure out that the open sesame method was not appropriate for this device. The metroflash method you speak of is ending/ended. This is no longer an option in most cases.
Ok well for informational purposes ---
The aforementioned importing of the two nv ranges was successful. For the life of me I can't figure out why the efs was invisible for so long and through so much effort and despite many attempts to read it, but after the procedure, it is visible again.
Any explanations for educational purposes are welcome.
I don't think you've broken a rule so don't worry. It is sometimes hard to talk about it. Most people use the terms donor phone or esn repair. The metroflash is ending or ended it is still not known. I live here in Dallas and stores are still flashing phones to metro. It is still possible you just need to look around to find the resources available. I forgot to mention that i have my e4gt to metro. Just pm me and ill direct you to the places you need.
chivasjose09 said:
I don't think you've broken a rule so don't worry. It is sometimes hard to talk about it. Most people use the terms donor phone or esn repair. The metroflash is ending or ended it is still not known. I live here in Dallas and stores are still flashing phones to metro. It is still possible you just need to look around to find the resources available. I forgot to mention that i have my e4gt to metro. Just pm me and ill direct you to the places you need.
Click to expand...
Click to collapse
Chivas thank you ~ I was attempting to keep the post free from such terms. I did actually get the phone up on metro using the aforementioned process using the proposed method I had outlined, (I was actually surprised the demo was able to do this because NOTHING could read those items once they disappeared on me, and then as soon as I finally did successfully edit them everything, including EFS explorer could read them again. I was very confused as to what had happened and am still interest if anyone has a proposed explanation). I appreciate your consideration. If perhaps you can direct me to a decent mms guide you can confirm working I would appreciate it because I dont think I've been able to send and even receiving seems highly dodgy at best. I would ask you if you could recommend a prl as there seems to be some contention on this subject as well, but as you're in Dallas I would assume I need to play with them to find the best one. I'm working on the GPS as well, but believe I've found the correct method as outlined here: http://forum.xda-developers.com/showthread.php?t=1750366.
What would also be nice some additional information with regard to the following:
The device is connected to metro with a metro prl however, when in service going to about phone - status - mobile network shows "Sprint"
And similar with the drop down notification drawer (IM using the new senzation rom at time of writing fyi though unless I am attempting to flash), it also reads either "not in service" if searching for signal, or "Sprint". more information
Thank you again, all consideration is appreciated
@ChemicalM How did you get to open EFS and NV items folder?
Wow... we're goin back pretty far here but if I remember correctly, DFS was successfully able to read the two NV ranges and after new ones were successfully imported the folders simply appeared, I don't believe I ever truly figured out why, but by that point the work was done so I didn't necessarily need it anymore.
I think I may have just put myself in a rather uncomfortable position... Refer to the attached pictures (there should be 3 of them), they can do the lot of explaining for me.
I first just rooted the stock ROM with the toolkit
Then I set out looking for a de-bloated ROM; I thought I found that solution here: http://forum.xda-developers.com/showthread.php?t=1927267
Got the nasty surprise of having no radios at all other than NFC, Bluetooth, Wi-Fi, etc. Everything BUT GSM
So I was directed to here: http://forum.xda-developers.com/showthread.php?t=1925402 and once I was finally able to download it, I flashed it and still no GSM service.
Took a peek at the props (pictured below) and that is what I came across.
What have I done or what just happened here??? A little freaked out here (not as familiar with Android as I am with Windows).
Unfortunately, I lack another mobile to try my sim card in but after checking my account with my provider online, there are no discrepancies that I can see thus far. I will phone my provider in a moment when I can allocate my thoughts; don't think they would have blacklisted my phone? (sounds silly, I guess; just considering things that might be a cause... or my lack of sleep is speaking for me x.x)
The first thing you should do is flash a stock rom for your phone. You can get it from sammobile.
After flashing the rom (don't forget to factory reset), check again for mobile signal and mac addresses.
Hopefully they'll be there (sometimes some custom roms do not 'see' your phone's efs properly and usually restoring to full stock fixes it).
Also PLEASE backup your EFS. Don't take the chance!
Sent from my GT-N7100
PorscheHusky said:
I think I may have just put myself in a rather uncomfortable position... Refer to the attached pictures (there should be 3 of them), they can do the lot of explaining for me.
I first just rooted the stock ROM with the toolkit
Then I set out looking for a de-bloated ROM; I thought I found that solution here: http://forum.xda-developers.com/showthread.php?t=1927267
Got the nasty surprise of having no radios at all other than NFC, Bluetooth, Wi-Fi, etc. Everything BUT GSM
So I was directed to here: http://forum.xda-developers.com/showthread.php?t=1925402 and once I was finally able to download it, I flashed it and still no GSM service.
Took a peek at the props (pictured below) and that is what I came across.
What have I done or what just happened here??? A little freaked out here (not as familiar with Android as I am with Windows).
Unfortunately, I lack another mobile to try my sim card in but after checking my account with my provider online, there are no discrepancies that I can see thus far. I will phone my provider in a moment when I can allocate my thoughts; don't think they would have blacklisted my phone? (sounds silly, I guess; just considering things that might be a cause... or my lack of sleep is speaking for me x.x)
Click to expand...
Click to collapse
Is your imei still present or changed?
Sent from the rabbit hole.
easy!
if you have done a nandroid restore it, if not just flash anything else ! why panic?
HELP! My 1x data quite working (Pageplus), verified that my radio settings seemed ok, but still no data. I then do a Factory reset with Odin (SPH-L710_SPR_L710VPBLJ7_L710SPRLJ7_Original) and now it looks like I lost a link to my account... When I go to call out, it says there isn't enough funds on the account, even though I have a monthly plan an nowhere near any limits).
Please help and give me some sort of direction, I've been fighting the data for the last couple days and now with voice not working, it's pretty much useless... :crying:
Connect to Wi-Fi and force hands free activation from the dialer by putting in "##72786#"
After entering the code, the phone rebooted and ran an activation. The activation keeps failing with error code 4 (Client Authentication Error)
Personally, I think something with the radio config may have gotten corrupt or something. Seems to odd with how 1x was working fine, then all data quit. I have no idea how to wipe/reset that data or if there is anything critical I need before doing so (don't want to brick the device or make my life getting this phone to work a LOT worse...)
bonduniverse said:
Personally, I think something with the radio config may have gotten corrupt or something. Seems to odd with how 1x was working fine, then all data quit. I have no idea how to wipe/reset that data or if there is anything critical I need before doing so (don't want to brick the device or make my life getting this phone to work a LOT worse...)
Click to expand...
Click to collapse
I'd say go back to stock unrooted and call Sprint. Maybe something got messed up on their end as forecasted by the "client authentication" error
CNexus said:
I'd say go back to stock unrooted and call Sprint. Maybe something got messed up on their end as forecasted by the "client authentication" error
Click to expand...
Click to collapse
Not using Sprint, bought phone and setup on PagePlus... Doubt Sprint will touch it without me being a customer...
SOLVED! - see post #7
This SM-N910V is rooted and had 3g but apparently I lost that when mucking around with things trying to get 4g. I've got other phones like a Galaxy S5 and Galaxy Note 5 both Verizon models that get 4g or 3g fine in this same location.
First odd thing I noticed on the Note 4 was a setting that popped up seemingly by itself while in 'More Networks' and 'Mobile Networks' that showed VZWInternet with a circle by that which was not yet checked so I tapped that and it turned green in the circle. I have never been able to see that option again. I don't think this caused the problem though. I've looked at apns-conf.xml in the /system/etc folder and can't see a problem there. I also tried replacing that with another one that is supposed to fix LTE mode. No luck so I put back the original. I wiped cache and reflashed a backup with TWRP which had been working on 3G but that didn't help - no 3g even. I did not wipe Dalvik/ART cache. I had been messing around in the 'Service Mode' menu with a bunch of different settings in an attempt to get 4g working but I'm fairly certain I got everything set back the way it was before I started. I noticed that one setting I had left different in the Service menu did not change back after flashing a restore with TWRP (full restore - all boxes checked). The one setting I left changed was the under the 'AS' protocol menu where I changed the Release version control to "LTE 3GPP REL 9" from LTE 3GPP REL 10". I know enough to be dangerous
Open to any suggestions - am wondering at the moment if I should have wiped the Dalvik/ART cache before the whole TWRP restore? At this point I'd be happy just to get 3g working again.
I also tried Dr. Ketan's LTE Enable. That didn't fix anything. Although I see MNC and MCC numbers in the apns-conf.xml file when I look at the SIM with a SIM info App I just see blanks in those spots on the SIM. Not sure if that's relevant - just giving as much info as I can here.
Did another restore with TWRP after wiping Dalvik/ART cache but that didn't fix it either. Strong cell signal but no 3G or 4G.
More info - I put the SIM card in another phone and it sees 3G at least.
It seems the "lost 3g or 4g" problem is very common and it seems I've looked through dozens of message threads here but I'm not finding any solutions. I'm looking at flashing the 'ltefix.zip' from this thread but it seemed to be for a custom ROM and I've just got the stock - more or less - 5.1.1.
Hmmm.... Been at this all day reading here, searching, trying everything but still no Mobile Data. Is this as elusive as rooting a Verizon Note 5? LOL - it was working at least on 3G. I'll take hints or even wild guesses at this point.
Okay - it finally flashed on me to do a restore of my EFS. Oddly I had done a full restore with TWRP which include EFS but that didn't fix the problem. That TWRP backup was done the same day I did an EFS backup using Dr. Ketan's IMEI tool for the Note 4. When I used the IMEI tool to restore the EFS backup I then had the 3G come back on. This is a 4G SIM so I still don't know why I'm not getting 4G but at least I got 3G back. I did have a hiccup using this IMEI tool which initially caused the phone to repeatedly shutdown after a minute or so and could not be restarted without pulling the battery. I believe it had to do with the 'Restore' button needing to be held down a certain amount of time instead of just a tap. I probably held, released too soon then held longer which I suspect caused a partial or damaged EFS restore. Be careful in how you use this tool or you may end up in that situation. I had to work very fast after a bootup to get it properly restored. After that it was stable again and had 3G.
Now if only I could figure out what it takes to get 4G.
..
I wasn't getting 4G for the longest time, checked the PRL in settings on my GFs phone and noticed my PRL ver was like 50 thousand something while hers was 15518. Got a new Sim card and all my issues went away, PSA do not use *228 programming...EVER.
..
..
acslam said:
Update/more info - I've continued to try and figure this out to no avail, although I got fed up with stock unrooted 5.1 and am now running modestrom v9 with a CQI2 base. And all of that install went fine, except for 4g of course.
I think this is worth mentioning as it might have something to do with the situation:
Way back in the beginning, I had gone through the entire unlock/root process, and everything actually worked fine the first time. This was right about the time the unlock became available, I bought the phone based specifically on that being possible, and got a brand new one at that time. Well, it was awesome for about 2 weeks, fully functional 4g and everything.
I had a very particular goal - I wanted this phone totally unlocked, but I was also very interested in the advanced/wifi calling that was supposedly coming out at that time - I was planning to move to a place with no vzw service and would be reliant on wifi for calls at home. Verizon wasn't clear about the fact that the wifi calling feature wasn't coming until MM, and this was before MM was released, so I was running a completely functional, 5.1.1 rom. I believe it was jasmine. So, under the impression that "advanced calling" would have given me wifi calling, I tried to enable it.
I cant recall if it was immediately, or a few hours after, but this is when the phone lost 4g for the first time. I immediately tried to deactivate the advanced calling feature on my line, but it didn't help. And nothing I could do would bring back 4g. I tried everything possible, and ultimately gave up and threw the phone in a drawer and went back to my note 3.
Fast forward several months, and my note 3 began to have issues with call audio, forcing me to use the 3g-only note 4 in order to actually handle day to day business. Again, I went through the processes of trying to fix 4g, with no success. Now by this time, MM had been released, I believe PD1 was the current firmware. I figured at this point it was time to just odin back to 5.1.1 and start everything over.
So I odin flashed the phone, and it booted into 5.1.1......with no 4g. Again I went through all the things I found here, no improvement. Finally, one day when the phone was bugging me about an OTA, I figured "what can it hurt at this point, its nearly useless without 4g anyhow."
And low and behold, the OTA update from verizon booted up and immediately jumped to 4g.
Now I felt I had a chance, a method that I'd finally proven could fix the problem. I left the phone in that state for a couple weeks, just to prove that it was holding. No problems during this time.
But I got sick of no root, and so I figured it was time to try and go through the steps again. And again, I lost the 4g connection. No big deal, just odin back to 5.1.1 and let it OTA like last time......
Except this time it didn't work. So I odin flashed back to 5.1 again, and let it try to OTA, again. I let the phone continually try to OTA all the way up to current, and flashed back to 5.1 at least 3 times to repeat the process in hopes it might fix something. No change at all. At this point I actually began to try and see if possibly Kies could help me here - maybe there was something related to the phones EFS? Which I don't understand very well btw - it was only through reading this thread that I began to research EFS and its significance. I also attempted to use some of the checkboxes in odin - the ones to erase all NAND and to clear EFS and rebuild it. Neither option made any difference. So I figured next logical step was to start playing around in service mode, which would require unlocking/rooting again......
And thats how I landed here. About an hour ago I got sick of the stock 5.1.1 and went through the whole root/unlock process and I'm currently running modestrom on CQI2 or whatever was just most recently posted. Every other part of the phone seems normal, but still no 4g. I can actually see the radio making an attempt to connect in the service mode - but I don't understand service mode menus well enough to interpret where the actual problem is. Upon boot the phone tries about 3 or 4 times to get an lte signal, during this time there is simply bars of signal, NO data indicator of any kind. Eventually, it gets frustrated and gives up, connecting to 3g and staying there. I realize now that when 3g drops, which is roughly every 10 minutes or so, its actually the phone attempting to establish LTE again. But still, I cannot make any sense of this.
Apologies for the giant post - I'm trying to put anything that could possibly be relevant info into one place here.
So........ anyone got any suggestions?
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PM sent. Just to share a little of that here I think the first thing I would do is tell VZ you suspect your SIM card is bad and have them put in another one. Tell them it fell out when changing a battery, the dog ate it and by the time it came out you suspect it wasn't quite right anymore - LOL. I do think SIM's flake out sometimes and I know a bad one can prevent 4G from working. If you ever had an EFS backup from anything try restoring ONLY the EFS (if you use TWRP). No guarantees that will fix it but my best guesses at this point. Good luck.
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I supect Verizon's doing this ...
acslam said:
I got a used stock note 4 to try and compare and see what I could be missing here....
Tried new sim card at least twice, unfortunately no dice, and the same card pops right into the spare note 4 and it wakes up on 4g just fine.......
EFS is something I probably should have been quick enough to dig in deeper on before this, as I don't have any backup of it....... however, I'm not seeing any other symptoms, I can see my imei fine, and every other function works. Is it possible that corrupted EFS can cause the loss of just one type of connection like that?
For giggles I tried a friends att sim, and no lte on that either.
Playing with the app LTE discovery, I can tell that the phone sees 4 different LTE towers just fine, showing db numbers exactly in line with the stock note 4 sitting right next to it, theres just something there under the surface thats stopping them from hooking up...... it stops trying after a couple minutes, rejects them all and connects to 3g.
I'm convinced its some kind of software thing, but I can't tell exactly where the failure is happening.....
I also odin flashed it back to stock bpa1, and still no dice. Is there a means to make an EFS backup without root? I want to see what happens if I try unlocking the other note 4 as well, but this time I want to have the backups......
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I've been running on Emotion 7.1.1 for months with NO issues (well, some minor stuff, you know....)
Suddenly, two weeks ago I got a notice from Google that I had to sign in on my phone. Verrrryyy odd. At first I suspected some hack attempt, but my Account checked out fine. Having changed my password recently, I had to wait until I got home to login.
After I logged in, all ~appeared~ to be OK. Then I opened my Calendar. B L A N K. All ten years of appointments gone. I freaked out. I have two calendars, one for personal stuff, birthdays and the like, and another with my business appointments, INCLUDING FINANCIAL STATUS of the account. Gone.
Went online on my PC, signed into Gmail and switched to my calendar. Empty. Looked in Trash. Nothing. Vanished. Nada. Niet. There's a long story here about recovery efforts, troubleshooting, Googling, etc, suffice to say that TWO separate, redundant, backups had quietly failed, without the notifications they were supposed to send. I did manage to get from the first week in April back 10 years, but lost the whole summer. Thank YOU-KNOW-WHO that I'm good friends with all my clients.
Fast forward to last week. Suddenly I get 3G only from my Verizon account. Like you, I spent days on the boards, downloading ROMS, wiping, re-wiping, trying everything short of smoke signals to get it back. No joy. I did NOT go back to stock, I must thank you greatly, as that was my next road. Now i see it's a dead end. I will NOT give up my Nougat root just to get 4G.
Perhaps this is a bit conspiracy theory sounding, but I've become convinced that Verizon is playing some game, perhaps to force us to upgrade to a new phone. I learned long ago that corporations have no soul, and will do anything they like to increase profits. They exist for two reasons; to make money for their officers and to make money for their stockholders. Any other semblance of a "Product" or "Service" exist ONLY and SOLELY for that reason. Anyone who is a Yahoo or AOL member knows the level of intrusive ads and attempts to trick people into putting spyware in their machines under the guise of "protection" or "cleanup" programs has jumped to a new level of absurdity since Verizon sucked them up. "Oath" indeed. It's what is coming out of existing customer's mouths! M O N E Y H U N G R Y.
When I chatted at length with a Verizon Tech, she made it clear that she knew the answer was to upgrade to the latest stock (I never admitted to rooting, but she knew, we spoke "between the lines" a lot). She sent me a SIM card, but it., of course, didn't fix the problem, in fact it would not even initialize properly! I had to go back to the original SIM.
Now that we've found a way (after YEARS of trying) around their stupid block on rooting, they change the game. What person who is so into their phone as to root it, will put up with 3G? This is something Verizon is playing at, Sprint too from what I gather.
My only consolation is that I've got so many WiFi's nearly everywhere I go, and when I'm not near one, my Wife's Note 4 (not rooted, on latest update) works fine. I'm glad I decided not to root hers too.
Frankly, this really ticks me off. I have better things to do than spend days copying files, flashing and reloading data. Verizon knows that, and let me tell you, it won't be THEM who sees my money when I finally do upgrade.
Thanks again for saving me from the Stock route, you saved me hours of grief.
Peace out!
PuterPro
I have run into 4g issues with this as well and almost came to conclusion is a modem issue. I want to say but can not confirm that modems that are flashed are relative to bootloader on the device. Just something I've been pondering on as I had a unlocked bootloader device and flashed for wife to use with no root and recently unlocked again.
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