Develop Bugs

Support for 4G LTE 2600(7)

Hi.
I've purchased a ZE551ml in Taiwan, here in Chile we use 4GLTE 2600(7), the TW version doesn't support that band, I've flashed the latest firmware, and now the version is "LRX21V.WW-ASUS_Z00A-2.13.40.13_20150401-8390_USER044030427_201501060109", this means I'm in the WW firmaware version? If not what can I do, and add support for 4GLTE in 2600(7) band?
Thanks for your help.

It is my understanding you will need to purchase a WW or US version to get band 7 support. The WW version in France should be released soon. No word on the US version.

I am not sure if there are different versions of ZenFone 2 ZE551ML (as for the hardware). I bought the ZE551ML from Taiwan about 2 weeks ago. It came with a WW firmware & I am living in Romania (so Europe). I did had some issues with LTE even after the last OTA update (the network kept dropping again and again). I solved the issues! For me, I only had to change the phone's ATP settings with the ones required by my network operator (Settings -> Wireless & Networks category -> More -> Cellular networks -> Access Point Names). Now I don't have any issue. Maybe you could try to find what settings are required by your network operator.

Thank you for saying this. I also have a TW ZenFone 2 and it came with WW firmware. I thought it was a mistake.

ddfault said:
Thank you for saying this. I also have a TW ZenFone 2 and it came with WW firmware. I thought it was a mistake.
Click to expand...
Click to collapse
Although it's WW, it's not the same build as real WW model.
I also have Zenfone 2 TW version. Re-flashed it to WW just to make it more generic.

sorg said:
Although it's WW, it's not the same build as real WW model.
I also have Zenfone 2 TW version. Re-flashed it to WW just to make it more generic.
Click to expand...
Click to collapse
Yeah, true. There is, for example, an asian-market game-store app, pre-installed. Even though my phone came in with a WW firmware, I chose to flash it with the WW ROM from their website (I thought it would have been a more light version with no 3rd-party apps like Kindle, TripAdvisor, etc...but it's the same )

My phone is working with 3G, and network APN are well recognized. Only have problem with 4G. I think the hardware must support all bands, it's a feature of the chipset. So I hope that with a different version of the firmware fue 4G could work.
Sent from my ASUS_Z00AD using XDA Free mobile app

afrugone said:
My phone is working with 3G, and network APN are well recognized. Only have problem with 4G. I think the hardware must support all bands, it's a feature of the chipset. So I hope that with a different version of the firmware fue 4G could work.
Sent from my ASUS_Z00AD using XDA Free mobile app
Click to expand...
Click to collapse
For me, the APN was recognized, as well...but I had to make some changes in some names. I hope you will get yout problem solved, somehow.

ddfault said:
Thank you for saying this. I also have a TW ZenFone 2 and it came with WW firmware. I thought it was a mistake.
Click to expand...
Click to collapse
How do you figure out if your Zenfone 2 is TW version if I may ask?

menbaosusu said:
How do you figure out if your Zenfone 2 is TW version if I may ask?
Click to expand...
Click to collapse
On the box check C.P/N barcode. Last two letters TW means Taiwan version.
Also, Taiwan version when bootы first time, suggests Chinese Traditional language by default.

Change FIrmware???
I keep reading different people saying: "I had CN firmware so I flashed WW firmware ...." while on the Asus site, from where I got the firmwares, says "DO NOT FLASH FIRMWARE OF DIFFERENT SKU VERSIONS" ... it explains further "CN SKU should flash CN firmware".
Can someone lead me in the right direction and tell me how to flash my CN version to WW version? Do I just flash the WW firmware off of Asus's site?

here is the bands it shut support from the differend versions
UMTS/WCDMA/TD-SCDMA/TDD-LTE/FDD-LTE
Data Rate:
HSPA+: UL 5.76 / DL 42 Mbps
DC-HSPA+: UL 5.76 / DL 42 Mbps
LTE Cat4:UL 50 / DL 150 Mbps
2G :
EDGE/GPRS/GSM :
850/900/1800/1900,
3G :
WCDMA :
850/900/1900/2100
TD-SCDMA: (CN/IN Only)
1900 ~ 2100
4G :
FDD-LTE: (TW)
2100MHz(1)/1900MHz(2)/1800MHz(3)/1700MHz AWS(4)/850MHz(5)/900MHz(8)/700MHz(28)
FDD-LTE: (WW)
2100MHz(1)/1900MHz(2)/1800MHz(3)/1700MHz AWS(4)/850MHz(5)/2600MHz(7)/900MHz(8)/800MHz(20)
FDD-LTE: (US)
2100MHz(1)/1900MHz(2)/1800MHz(3)/1700MHz AWS(4)/850MHz(5)/2600MHz(7)/900MHz(8)/700MHz(17)/800MHz(20)
FDD-LTE: (CN/IN)
2100MHz(1)/1800MHz(3)
TDD-LTE: (CN/IN)
2600MHz(38)/1900MHz(39)/1900MHz(40)/1900MHz(41)

It seems that installing a different region firmware will work, but the bands won't. However, i know that the ZenFone 2 uses the same LTE modem in all these ZE551ML devices (Intel XMM 7262 Slim Modem—LTE Advanced). But this modem may come in 2 variants (not sure). I contacted Intel and Asus for more info regarding this. I know that there was an issue with Galaxy S5, for example, where some bands weren't allowed by default (market related), even though the phone supported them.

Flashing firmware from different region won't change supported 4G bands. Bands support relies on region of phone, which is defined in SFI (it's simpler version of ACPI found in PC) OEM1 table, and it's not touched by flashing procedure.
Although, it may be possible to spoof HW region in kernel. But it requires unlocked bootloader.
There may be another way to unlock bands: copy one region specific file set to another region set, but it may not work. This method doesn't require unlocked bootloader.
BTW, there is one more region not mentioned above, called FULL. So, according to name, it should support frequencies from all regions.

sorg said:
Flashing firmware from different region won't change supported 4G bands. Bands support relies on region of phone, which is defined in SFI (it's simpler version of ACPI found in PC) OEM1 table, and it's not touched by flashing procedure.
Although, it may be possible to spoof HW region in kernel. But it requires unlocked bootloader.
There may be another way to unlock bands: copy one region specific file set to another region set, but it may not work. This method doesn't require unlocked bootloader.
BTW, there is one more region not mentioned above, called FULL. So, according to name, it should support frequencies from all regions.
Click to expand...
Click to collapse
well now i got mine
an mine is an cn version
but the funny part is that it say ww in firmware
an yes i got LTE connection were i live
an my provider use 800/1800/2600

Taking a look at the recovery last_log file, the latest WW_ZE551ML_2.15.40.10_20150425 firmware include quite a few ifwi Image FW versions:
ifwi: 0002.50E6
ifwi: 0002.00E6
ifwi: 0005.00E6
ifwi: 0088.0163
ifwi: 0094.0171
ifwi: 1002.10E6
IFWI FW Major version numbers (the first four) have to match before it will flash the firmware.
I suspect these may be the different regional modems in our device, but allows ASUS to push a single firmware.

ddfault said:
Taking a look at the recovery last_log file, the latest WW_ZE551ML_2.15.40.10_20150425 firmware include quite a few ifwi Image FW versions:
ifwi: 0002.50E6
ifwi: 0002.00E6
ifwi: 0005.00E6
ifwi: 0088.0163
ifwi: 0094.0171
ifwi: 1002.10E6
IFWI FW Major version numbers (the first four) have to match before it will flash the firmware.
I suspect these may be the different regional modems in our device, but allows ASUS to push a single firmware.
Click to expand...
Click to collapse
There are exactly 6 ifwi_ files in ifwi.zip inside the ROM package. But I can't figure out their versions... Maybe we can flash an ifwi with different major version with xFSTK Downloader?
EDIT: Finally got something...
0002.00E6 ifwi_ann_a0-mofd_v1.bin
1002.10E6 ifwi_ann_a0-mofd_v1-DBG.bin
0005.00E6 ifwi_ann_a0-mofd_v1-DSDA.bin
0002.50E6 ifwi_ann_a0-mofd_v1-SIL.bin
0088.0163 ifwi_ann_a0-mofd_v1-ze550ml.bin
0094.0171 ifwi_ann_a0-mofd_v1-ze551ml.bin
Version checking tool here: https://github.com/updateing/IFWIVersionDump

doing so can we change modem region and available lte bands?
updateing said:
There are exactly 6 ifwi_ files in ifwi.zip inside the ROM package. But I can't figure out their versions... Maybe we can flash an ifwi with different major version with xFSTK Downloader?
EDIT: Finally got something...
0002.00E6 ifwi_ann_a0-mofd_v1.bin
1002.10E6 ifwi_ann_a0-mofd_v1-DBG.bin
0005.00E6 ifwi_ann_a0-mofd_v1-DSDA.bin
0002.50E6 ifwi_ann_a0-mofd_v1-SIL.bin
0088.0163 ifwi_ann_a0-mofd_v1-ze550ml.bin
0094.0171 ifwi_ann_a0-mofd_v1-ze551ml.bin
Version checking tool here: https://github.com/updateing/IFWIVersionDump
Click to expand...
Click to collapse

quejo said:
doing so can we change modem region and available lte bands?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=60300214&postcount=14
Maybe not. (I'm wondering if -DBG version allows unsigned kernels, like unlocked bootloader, and if phone will recognize it)

updateing said:
http://forum.xda-developers.com/showpost.php?p=60300214&postcount=14
Maybe not. (I'm wondering if -DBG version allows unsigned kernels, like unlocked bootloader, and if phone will recognize it)
Click to expand...
Click to collapse
I don't hope much. There are 2 different ifwi binaries:
Code:
ifwi_ann_a0-mofd_v1-ze550ml.bin
ifwi_ann_a0-mofd_v1-ze551ml.bin
But only one DBG version.
It means, DBG version is for special DEBUG device, with probably special hardware config, neither ZE550ML nor ZE551ML.
It's possible, that ZE551ML and ZE550ML are the same at bootloader stage where existing differences are not touched. But if there is some initialization or even access of device specific config, then wrong bootloader will eventually brick device.
For some unknown reason ASUS choose not to hardlock write access to boot block. It's only "soft locked". It means, with root access you can enable write access and then using dd, you can re-flash boot block. Btw, boot block (IFWI) is written not as-is. Updater reads some kind of settings/config from existing boot block, then copies it to new boot block and then writes it back to flash.
So, it's extremely dangerous to mess with boot block flashing!

Converting a X727 to a x720, 4G bands supported ?

Hi, I´m from Portugal and my Carrier is MEO. For 4G they support band 20/3/7.
I want to buy LeTV LeEco Le Pro 3 X727 and it says he only supports 4G FDD-LTE: 2/4/5/7/12/17/29/30/38.
LeEco Le Pro 3 X720 support 4G FDD-LTE: B1/2/3/4/5/7/8/20.
IF i install Lineage rom, or another Rom for X720 on x727 model, do he gonna support the same bands as 720? the 2/7/20?
Thx in advance and sorry for my poor English.

Pastilhas said:
Hi, I´m from Portugal and my Carrier is MEO. For 4G they support band 20/3/7.
I want to buy LeTV LeEco Le Pro 3 X727 and it says he only supports 4G FDD-LTE: 2/4/5/7/12/17/29/30/38.
Click to expand...
Click to collapse
This is not right. X727 have band 3 100%...

Yes I confirm it has B3, I checked on the official LeEco website.
Full LTE List : LTE Bands 1/2/3/4/5/7/8/12/17/29/30/38

Also to answer your question, the supported bands are written to the NVRAM of the phone and aren't part of the rom. So no, if you flash a X720 rom on an X727 you won't unlock any addition bands.

mikeysteele said:
Also to answer your question, the supported bands are written to the NVRAM of the phone and aren't part of the rom. So no, if you flash a X720 rom on an X727 you won't unlock any addition bands.
Click to expand...
Click to collapse
So the supported bands are not written in baseband modem that we flash?? Interesting..

Luckzzz said:
So the supported bands are not written in baseband modem that we flash?? Interesting..
Click to expand...
Click to collapse
Yeah, the baseband chip support all bands as it's part of the SoC. The modem driver is kind of generic. It reads a bit of read only storage on the phone called NV_RAM which contains stuff like the bands the phone supports, the IMEI, etc. So it is sometimes possible to unlock additional bands by editing the NV_RAM

mikeysteele said:
Yeah, the baseband chip support all bands as it's part of the SoC. The modem driver is kind of generic. It reads a bit of read only storage on the phone called NV_RAM which contains stuff like the bands the phone supports, the IMEI, etc. So it is sometimes possible to unlock additional bands by editing the NV_RAM
Click to expand...
Click to collapse
So editing this in the Build.prop makes all x720 custom roms compatible with x727 (in theory)
*EDIT - Of-topic: Melbourne look likes the best city ever. Moving as soon as possible

I have the LEX 727 from Amazon but no working bands 2 or 4, any ideas to help me? changing the rom to the chinese version? something in the modem, baseband?

Luckzzz said:
So editing this in the Build.prop makes all x720 custom roms compatible with x727 (in theory)
*EDIT - Of-topic: Melbourne look likes the best city ever. Moving as soon as possible
Click to expand...
Click to collapse
NVRAM isn't in the build prop, its a special bit of persistent memory in the phone. To edit it you need to put the phone into diagnostic mode and use QPST.
And yeah, Melbourne is pretty sweet. I hope to see you here soon!

What version of LG G7 should i buy for UK?

As title says which version of phone should i avoid on fleabay as i want to buy this phone. No one seems to answer this specifically :/
thanks

bump

You need european version, so G710EM (64GB) or G710EAW (128GB)

i get that i need the european version but the american handsets will work too and i've been told to avoid the Tmobile version at all costs.
i just needed to now which is the best variant from the american/canadian ones!
cheers

Canadian AWM version. Support more lte band (for UK and Europe) then USA unlocked ULM

thanks siley

only g710EM

now im confused???

Get the 710em that's what I got when I brought mine worked fine

I told him EM or EAW is best for Europe, but he want model from America so Canadian AWM is better.

I got the LM-G710EM version
Siley said:
You need european version, so G710EM (64GB) or G710EAW (128GB)
Click to expand...
Click to collapse
I got the LM-G710EM version, IMEI number is valid, everything seems fine, but cannot upgrade to android 9.... it should have been available since last spring... any advice? ?

alexelovsky said:
I got the LM-G710EM version, IMEI number is valid, everything seems fine, but cannot upgrade to android 9.... it should have been available since last spring... any advice? ?
Click to expand...
Click to collapse
I think is a crossflashed device. Mine is EM too, but came with open EU rom and it is a TIM device (italian carrier). Amazon things...
U can flash any firmw u want with lg_up 14-15, but with no ota support due to restrictions. U can always search ur region with ur imei in internet after a simple search on google, but if the device is from carrier... I recommend u a clean open eu kdz over any carrier firmware.

Can i flash any android 10 on G7 EAW HKG?

There's still no rumors about update to 10 Android for HKG 6/128 version. "Ay hate this sh1t"
So, could someone give a hint what ROM is it possible to flash on EAW 6/128? I mean w/o rooting, cracking boot and all that. Or there's not such ways and I should sell it with Pie and jump to somthng more actual?

Up

Billy Madison said:
There's still no rumors about update to 10 Android for HKG 6/128 version. "Ay hate this sh1t"
So, could someone give a hint what ROM is it possible to flash on EAW 6/128? I mean w/o rooting, cracking boot and all that. Or there's not such ways and I should sell it with Pie and jump to somthng more actual?
Click to expand...
Click to collapse
I've G7+EAW 6/128 HK version based on the IMEI. I upgrade to Android 10 EAW Indian version using LG UP. Download KDZ file from lgfirmwares or join Telegram group for G7 ThinQ Development, somebody have GDrive link for the kdz file.

traktopel said:
I've G7+EAW 6/128 HK version based on the IMEI. I upgrade to Android 10 EAW Indian version using LG UP.
Click to expand...
Click to collapse
Do both sim slots still work? Do all lte bands work? What about serial number anr GPay? NFC / GPay still works ok? Or maybe serial becomes 0?

Billy Madison said:
Do both sim slots still work? Do all lte bands work? What about serial number anr GPay? NFC / GPay still works ok? Or maybe serial becomes 0?
Click to expand...
Click to collapse
I've 2 SIM devices, but only use 1 SIM (another slot I use for memory card) so I don't test other SIM work or not. But in setting menu still show SIM Card 2 (grey out because no SIM inserted). I'm Indonesian, and so far LTE work normally with my telco operator. I didn't lose my IMEI and SN, both still same as previous. NFC work but don't now about GPay because it's not available in Indonesia.
Only one annoying thing, when I restart the phone, always come out notification: "current version is not available for user. Can't find matched carrier. NT-Code: FFFFFF:54". However it's seems only notification, the phone working properly.

traktopel said:
I've 2 SIM devices, but only use 1 SIM (another slot I use for memory card) so I don't test other SIM work or not. But in setting menu still show SIM Card 2 (grey out because no SIM inserted). I'm Indonesian, and so far LTE work normally with my telco operator. I didn't lose my IMEI and SN, both still same as previous. NFC work but don't now about GPay because it's not available in Indonesia.
Only one annoying thing, when I restart the phone, always come out notification: "current version is not available for user. Can't find matched carrier. NT-Code: FFFFFF:54". However it's seems only notification, the phone working properly.
Click to expand...
Click to collapse
halo gan, saya masih pake lg g7 plus indonesia resmi LG jg gan, boleh minta tolong di guide step by step supaya bisa naik ke android 10 gan? terima kasih

Changing Firmware G810EA to G810EAW

Hi, it is possible and safe to change the firmware of LG g8s g810ea to g810eaw? I thought about flashing new firmware with LG up.

brazer1 said:
Hi, it is possible and safe to change the firmware of LG g8s g810ea to g810eaw? I thought about flashing new firmware with LG up.
Click to expand...
Click to collapse
I know nothing about the G8s, never owned one, but generally speaking, pretty sure changing the firmware is much the same as the G8. There are some no no's, like if you have dual sim to single sim, or vice versa, but you don't say anything about the firmware you're referring to... it might help to know why you want to change, iow, what are you trying to accomplish?
But more than likely, it shouldn't be a problem. I'd suggest first to ask on the tele group for the v50 / G8 devices, they are more international experience there and will be more certain. Cheers

Thank you for a quick answer. My LG G8s is a g810ea version. I won’t to flash g810eaw firmware because the are fresher builds. Newest build for eaw is 30c from 7/2022, when ea 30a is from 12/2021. Also LG Germany declared Android 12 update. Morover I couldn’t find setting for VoWifi and Volte. All firmwares are meant for LG G8s, which is available in 3 versions g810ea, g810eaw and g810ra.

brazer1 said:
Thank you for a quick answer. My LG G8s is a g810ea version. I won’t to flash g810eaw firmware because the are fresher builds. Newest build for eaw is 30c from 7/2022, when ea 30a is from 12/2021. Also LG Germany declared Android 12 update. Morover I couldn’t find setting for VoWifi and Volte. All firmwares are meant for LG G8s, which is available in 3 versions g810ea, g810eaw and g810ra.
Click to expand...
Click to collapse
From what I can see on the firmware pages, should be okay. Always keep in mind that ea individual rom has certain bands enabled, so be sure the bands it has will meet your needs.
Also, vowifi and volte are dependent on your carrier, not just the phone. The G8s is capable of both, but if your carrier doesn't allow them then there's no way to make the work. And, some carriers (like US at&t), only allow it to work on their phones - or at least that was the case at one time.
It's always best to flash an 'open' version Rom, if there's one available with the bands you need, and your carrier allows a phone on their network that isn't running their specific rom (usually an mvno type carrier is best).
cheers