Support for 4G LTE 2600(7) - ZenFone 2 Q&A, Help & Troubleshooting

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!

Related

[Q] 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?
EdoIsa said:
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?
Click to expand...
Click to collapse
well i have the same Q
i will get my cn version tommorow an then i will try an flash ww version
but if someone know already
can it be done an will it open all EU LTE bands then
-fluffy- said:
well i have the same Q
i will get my cn version tommorow an then i will try an flash ww version
but if someone know already
can it be done an will it open all EU LTE bands then
Click to expand...
Click to collapse
I have the Chinese version and I just applied the pre-root ROM ... it actually changed my firmware to WW! Although, bands are the same. :/
Here is a reply to my question on another thread by user 'MironV' : "It seems that installing a different region firmware will work, but the bands won't."
Another reply by 'sorg' : "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."
The thread is located here: http://forum.xda-developers.com/zen...-lte-26007-t3085514/post60297625#post60297625

Need help to find US firmware and rom to use LTE

Hello everyone,
I hope someone can help me.
I have an asian unlocked M8 and I live in Mexico so I cant use LTE. To solve this I got S-off, supercid, wwe mid and wwe firmware with Android Revolution Rom and still cant use LTE (Europe LTE bands do not include band 4 aws, so its the same crap). I tried to flash att and t-moble radio but mi phone did not recognise the radio file (Unknown baseband) so I get no signal. Then I flashed the wwe radio and got the same no recognition problem. The only way to get back signal is to flash again the firmware (it does not work to switch the att radio image in wwe firmware)
I need att or t-mobile bands to use mexican carriers Telcel or Movistar LTE (band 4 aws) and I guess I should use att or t-mobile firmware with the matching based rom.
- Can someone recomend me a rom version and firmware version to download??
- Is the unknown baseband problem because of the wwe mid? Should I also change the wwe to att or t-mobile mid and cid??
Thanks for your time and help!!
chortiman said:
I tried to flash att and t-moble radio but mi phone did not recognise the radio file (Unknown baseband) so I get no signal. Then I flashed the wwe radio and got the same no recognition problem. The only way to get back signal is to flash again the firmware (it does not work to switch the att radio image in wwe firmware)
Click to expand...
Click to collapse
What if you current firmware version, is it Euro 4.16.401?
Where did you get the AT&T radio(s) and what is the file name?
Are you sure you are using the baseband for the right Android version (4.4.4 or 5.0, etc.)? If you are using the wrong radio for the Android version, that is the only reason I can see for any problems. As long as you are using the right version (Lollipop radio with a Lollipop ROM, etc), the radios should be interchangeable (with exception of Verizon, Sprint, M8x, dual SIM - don't mess with those).
But I would still advise to flash the whole firmware (not just the radio) to assure that everything plays well together.
chortiman said:
- Can someone recomend me a rom version and firmware version to download??
Click to expand...
Click to collapse
I would suggest the Lollipop AT&T firmware (4.28.502) or Dev Edition (4.16.1540 - same band support as AT&T version) which you can get here (attached with the full ROM, unfortunately): http://forum.xda-developers.com/att-htc-one-m8/development/att-4-4-3-2-22-1540-3-debloated-sense-6-t2837365
After that, you should be able to use just about any Lollipop ROM for the M8.
redpoint73 said:
What if you current firmware version, is it Euro 4.16.401?
Where did you get the AT&T radio(s) and what is the file name?
Are you sure you are using the baseband for the right Android version (4.4.4 or 5.0, etc.)? If you are using the wrong radio for the Android version, that is the only reason I can see for any problems. As long as you are using the right version (Lollipop radio with a Lollipop ROM, etc), the radios should be interchangeable (with exception of Verizon, Sprint, M8x, dual SIM - don't mess with those).
But I would still advise to flash the whole firmware (not just the radio) to assure that everything plays well together.
Click to expand...
Click to collapse
Yes, my current firmware is 4.16.401.10
I got the radio images from here, but I certanly mixed basebands with android versions.
I will go with your suggestion of flash a whole firmware.
redpoint73 said:
I would suggest the Lollipop AT&T firmware (4.28.502) or Dev Edition (4.16.1540 - same band support as AT&T version) which you can get here (attached with the full ROM, unfortunately): http://forum.xda-developers.com/att-htc-one-m8/development/att-4-4-3-2-22-1540-3-debloated-sense-6-t2837365
After that, you should be able to use just about any Lollipop ROM for the M8.
Click to expand...
Click to collapse
Can I flash this firmware with another rom, say INSERT COIN? I read in the ROM instructions to use 4.16.401.10
Can I use the ROM attached to the firmware you suggested with my local carrier?
Thank you again for your help.
chortiman said:
Can I flash this firmware with another rom, say INSERT COIN? I read in the ROM instructions to use 4.16.401.10
Click to expand...
Click to collapse
As I said, the firmware can be used with most any Lollipop M8 custom ROM.
The instructions say you need 4.16.401 firmware, but that's just a "lazy" requirement. Any Sense LP firmware should work with the current InsertCoin. To be fair, many of the "international" devs are Euro based, so they have little or no experience with other region's firmwares; and don't want to be held responsible for issues that arise for using them.
You should use or select the firmware based on region and carrier band support (in addition to Android version); not by ROM.
chortiman said:
Can I use the ROM attached to the firmware you suggested with my local carrier?
Click to expand...
Click to collapse
You can. I'm personally not crazy about AT&T specific "features" (as the ROM is meant to include). Even having AT&T as a carrier, I tend toward the non-ATT based ROMs.
You may need to manually enter your carrier's APN info to get data connection.
Perfect.
I am currently in my work but at night I will follow your suggestions and come back tomorrow -or as soon as posible- to inform if this worked and may be useful to someone else.
Best regards!!
chortiman said:
Perfect.
I am currently in my work but at night I will follow your suggestions and come back tomorrow -or as soon as posible- to inform if this worked and may be useful to someone else.
Best regards!!
Click to expand...
Click to collapse
Hi, did you solve it? no luck here.
elpicard said:
Hi, did you solve it? no luck here.
Click to expand...
Click to collapse
Hi,
I flashed succesfully the att latest firmware, but it is the same, no LTE signal.
I recently found this posts to UNLOCK QUALCOMM BANDS and I tried to follow the steps to do so, but they are very unclear and I got stuck in step 3.
I wanted to come back to this post to share a solution, but i cant find it. If you can complete the guide, please share your results.
Best regards.
chortiman said:
I flashed succesfully the att latest firmware, but it is the same, no LTE signal.
Click to expand...
Click to collapse
Check your APN, sometimes carriers use a different one to support LTE.
Otherwise, if you tried only one firmware (such as AT&T) then try another: T-Mob or Dev Ed all supposedly support AWS.

HELP w/ ZE551ML - Z00ADB China Variant Root+Change to WW FW with all 4G frequencies?

Hi
I just bought a ZenFone2 yesterday. It's a China/India variant
Code:
[B][U]551ML Z00_ADB[/U][/B]
- (4GB RAM + 16 GB Internal + 1.8Ghz CPU).
Because it's a "grey import" there's no manufacturor's warranty with it (unless I fly to China) - so I'm gonna get to modding this. Now I've been doing it for years with my previous HTC One and Galaxy S3..
However, this Asus Zen seems to be "too commonly named"... the variants, the different versions.. many of them ZE551ML - yet specs different. In fact it took me 5 minutes just to find this one I bought on any website at all (cuz usually the 1.8Ghz version is supposed to carry 2GB RAM)..
Anyway- sorry to drift off topic - I need a quick/easy link to the right files to turn this into a WW version with all 4G channels open hopefully.
It's currently on Android 5.0 and baseband 2.something...
I don't really want to experiment too much because it's my first upgrade in 4 yrs...
So ideally - I'd be asking anyone familiar with this specific variant to point me in the right direction..
Bootloader/Root
FW Upgrade
WWE Variant
Kernel
MM/Noug (I'd go with AICP but ZenUI does offer some cool stuff)
Very familiar with adb commands and stuff - I've been modding apps and kernels for a long time. *Not*Coder* though.
TIA
#
ryankabir said:
Hi
I just bought a ZenFone2 yesterday. It's a China/India variant
Code:
[B][U]551ML Z00_ADB[/U][/B]
- (4GB RAM + 16 GB Internal + 1.8Ghz CPU).
Because it's a "grey import" there's no manufacturor's warranty with it (unless I fly to China) - so I'm gonna get to modding this. Now I've been doing it for years with my previous HTC One and Galaxy S3..
However, this Asus Zen seems to be "too commonly named"... the variants, the different versions.. many of them ZE551ML - yet specs different. In fact it took me 5 minutes just to find this one I bought on any website at all (cuz usually the 1.8Ghz version is supposed to carry 2GB RAM)..
Anyway- sorry to drift off topic - I need a quick/easy link to the right files to turn this into a WW version with all 4G channels open hopefully.
It's currently on Android 5.0 and baseband 2.something...
I don't really want to experiment too much because it's my first upgrade in 4 yrs...
So ideally - I'd be asking anyone familiar with this specific variant to point me in the right direction..
Bootloader/Root
FW Upgrade
WWE Variant
Kernel
MM/Noug (I'd go with AICP but ZenUI does offer some cool stuff)
Very familiar with adb commands and stuff - I've been modding apps and kernels for a long time. *Not*Coder* though.
TIA
#
Click to expand...
Click to collapse
WW version do not opens all Bands of 4G. tell me which particular band you want to use or u need?
sukhwant717 said:
WW version do not opens all Bands of 4G. tell me which particular band you want to use or u need?
Click to expand...
Click to collapse
Okay - But this variant has only one Chinese band. I travel a lot (and live in UK) so I'd need EU + North America + India/Bangladesh -
-- Would be able to answer the rest of my question please? -- (the official asus site has only Lollipop in CN variant SKU, WW has Android M but Japan variant is even newer (Dec 2016) - Shall I grab those or....? I need to fully unlock/crack this open as I will be modding into Nougat soon from Cyano/AiCP
ryankabir said:
Okay - But this variant has only one Chinese band. I travel a lot (and live in UK) so I'd need EU + North America + India/Bangladesh -
-- Would be able to answer the rest of my question please? -- (the official asus site has only Lollipop in CN variant SKU, WW has Android M but Japan variant is even newer (Dec 2016) - Shall I grab those or....? I need to fully unlock/crack this open as I will be modding into Nougat soon from Cyano/AiCP
Click to expand...
Click to collapse
as i mentioned earlier none of the firmware will open all the frequencies.
TW version will open band 1,2,3,4,5,8,9,18,19,28
WW version will use 1,2,3,4,5,7,8,20
US version 1,2,3,4,5,7,8,17,20
CN version 1,20 on FDD and 38,39,40,41 on TDD
and you can choose any of above version of firmware. to change the firmware you must get RAW firmware of your desired version and flash it via Fastboot commands. there are other ways to do so like flashing ifwi and boot files then updating via zip.. but raw is the most safe method. as there are lot of chances you may brick your device..
sukhwant717 said:
as i mentioned earlier none of the firmware will open all the frequencies.
TW version will open band 1,2,3,4,5,8,9,18,19,28
WW version will use 1,2,3,4,5,7,8,20
US version 1,2,3,4,5,7,8,17,20
CN version 1,20 on FDD and 38,39,40,41 on TDD
and you can choose any of above version of firmware. to change the firmware you must get RAW firmware of your desired version and flash it via Fastboot commands. there are other ways to do so like flashing ifwi and boot files then updating via zip.. but raw is the most safe method. as there are lot of chances you may brick your device..
Click to expand...
Click to collapse
Thanks - No info about Europe/EMEA then... What bout Japan? - They have the latest (Dec 2016) FW
ryankabir said:
Thanks - No info about Europe/EMEA then... What bout Japan? - They have the latest (Dec 2016) FW
Click to expand...
Click to collapse
buddy either you are unable to understand or i am not getting it.... being on latest firmware will not change anything in Band configuration. whatever firmware you are on. either it is very first release or the latest one band configuration will be the same. you have choose firmware according to your required Band Config. don't look at latest release. look at your requirement..
sukhwant717 said:
buddy either you are unable to understand or i am not getting it.... being on latest firmware will not change anything in Band configuration. whatever firmware you are on. either it is very first release or the latest one band configuration will be the same. you have choose firmware according to your required Band Config. don't look at latest release. look at your requirement..
Click to expand...
Click to collapse
-Then you did not understand. Please let me repeat it again.
Your msg quote " choose firmware according to your required Band Config. don't look at latest release. look at your requirement. "
My question in my reply " What bout Japan? - They have the latest (Dec 2016) FW "
=
There was no information about the JP SKU FW
- so if I do not know what bands are availabe in THAT FW, then how will I know if it matches requirement?
Choose FW based on Requirement
Don't look at Release FW, look at your requirement. - That's a paradox BUDDY.
Someone has to look at the Released FW (bands + other features) AND then check if it matches their requirement. YES?
Also (separate question)
isn't it possible to merge the various radio_xx.img from different FWs into one CFW so all are open? I've done it previously for HTC One long time ago. I'm wondering if it is different for this device or OS.
ryankabir said:
-Then you did not understand. Please let me repeat it again.
Your msg quote " choose firmware according to your required Band Config. don't look at latest release. look at your requirement. "
My question in my reply " What bout Japan? - They have the latest (Dec 2016) FW "
=
There was no information about the JP SKU FW
- so if I do not know what bands are availabe in THAT FW, then how will I know if it matches requirement?
Choose FW based on Requirement
Don't look at Release FW, look at your requirement. - That's a paradox BUDDY.
Someone has to look at the Released FW (bands + other features) AND then check if it matches their requirement. YES?
Also (separate question)
isn't it possible to merge the various radio_xx.img from different FWs into one CFW so all are open? I've done it previously for HTC One long time ago. I'm wondering if it is different for this device or OS.
Click to expand...
Click to collapse
unfortunately i tried to activate different bands but no success till now.. as per concern with JP firmware.. download it and look for active 4G bands in tlv file..... i don't have JP firmware on my PC. and not willing to download too. data is too costly Buddy. so check it yourself
Solved it, it was easier than other phones actually sys/intel has the right files that need merging from different variants.
ryankabir said:
Solved it, it was easier than other phones actually sys/intel has the right files that need merging from different variants.
Click to expand...
Click to collapse
can you elaborate which additional band you opened on which firmware?

Network problem in France, buying seller english asian phone

Hello everyone, I bought this wonderful phone from an English seller on Ebay. But since the 1st day, I have big network worries I do not capture the same 4g in town. I come to you because I think this must be a software problem, which is not expected for a commercialization in Europe. I tried several manipulations to unlock the bootloader, trying to change rom..rien to do I have this impression of being stuck..Help me please.
Phone info :
Version d'android : 5.1
Version de bande de base : MPSS.BO.2.5.c3-00060-M8992FAAAANAZM-1.18275.1
Version du noyau : 3.10.49
Numéro de build : LMY47D
Version logicielle : V10b-GLOBAL-COM
anis625 said:
Hello everyone, I bought this wonderful phone from an English seller on Ebay. But since the 1st day, I have big network worries I do not capture the same 4g in town. I come to you because I think this must be a software problem, which is not expected for a commercialization in Europe. I tried several manipulations to unlock the bootloader, trying to change rom..rien to do I have this impression of being stuck..Help me please.
Phone info :
Version d'android : 5.1
Version de bande de base : MPSS.BO.2.5.c3-00060-M8992FAAAANAZM-1.18275.1
Version du noyau : 3.10.49
Numéro de build : LMY47D
Version logicielle : V10b-GLOBAL-COM
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Make sure the devices lte bands match that of your carriers lte bands. Dont look at 2g and 3g bands. Only lte bands. Second id say make sure your apn settings are correct.
And last is make sure in mobile networks you have global or gsm cdma and lte selected
---------- Post added at 11:22 AM ---------- Previous post was at 11:19 AM ----------
A lot of times this could be due to specific hardware not picking up propper lte bands or those bands not being enabled. Which u can google on enabling hidden lte bands. I didnt notice what model u had from the seller. I noticed u said manipulations of unlocking bl so where u sucsessful? Then its a h815 i believe which would be the global model. Which then could be software relTed or a settings issue.
I had not specified that it is a h815 international version but planned for a planned commercialization in Singapore. According to my operator the antenna 4g near my home uses only the band 800 which is normally compatible with ... I also have a lg g4 that works perfectly with my chip. All APN settings are correct .. Is there a way to force to use this tape?
I tried manipulation to unlock the bootloader with the official version of LG but it is an Asian phone .. I thought of a software problem so I tried with lg bridge that does not pick up my phone. Is there any other way?
anis625 said:
I had not specified that it is a h815 international version but planned for a planned commercialization in Singapore. According to my operator the antenna 4g near my home uses only the band 800 which is normally compatible with ... I also have a lg g4 that works perfectly with my chip. All APN settings are correct .. Is there a way to force to use this tape?
I tried manipulation to unlock the bootloader with the official version of LG but it is an Asian phone .. I thought of a software problem so I tried with lg bridge that does not pick up my phone. Is there any other way?
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Dont know about ure version i still use old lg flashtool from g2 to flash my stock firmwares but i have a sprint varient which i believe is one of the only few use .tots files instead of .kdz file format
What is the method ?

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.
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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.
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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..
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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
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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
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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!

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