Modem Problem - Xiaomi Poco F1 Questions & Answers

Hello,
i using the Poco F1 with 128G EU Version.
ROM: crDroidAndroid-9.0-20190305-beryllium-v5.1
Vendor Firmware: beryllium-9.2.15-9.0-vendor-firmware (also tried latest one. no luck)
TWRP: twrp-3.2.3-2-beryllium
GAPPS: open_gapps-arm64-9.0-nano-20190307
ROOT: Magisk-v18.1
My Issue:
Can't send SMS from SLOT 1 or 2. I'm getting Code 28 error. Also does WiFi Calling not work anymore.
My Plan includes Wifi Calling and SMS Flatrate. (German o2)
I had already change modem SUBID0 and SUBID1 to DT_GREECE. It worked with Lineageos then once i updated vendor firmware to latest non of them worked.
LTE Works fine, Calling also.
Please help me

still have this problem

danja95 said:
Hello,
i using the Poco F1 with 128G EU Version.
ROM: crDroidAndroid-9.0-20190305-beryllium-v5.1
Vendor Firmware: beryllium-9.2.15-9.0-vendor-firmware (also tried latest one. no luck)
TWRP: twrp-3.2.3-2-beryllium
GAPPS: open_gapps-arm64-9.0-nano-20190307
ROOT: Magisk-v18.1
My Issue:
Can't send SMS from SLOT 1 or 2. I'm getting Code 28 error. Also does WiFi Calling not work anymore.
My Plan includes Wifi Calling and SMS Flatrate. (German o2)
I had already change modem SUBID0 and SUBID1 to DT_GREECE. It worked with Lineageos then once i updated vendor firmware to latest non of them worked.
LTE Works fine, Calling also.
Please help me
Click to expand...
Click to collapse
Flash stock rom and back up your efs

Related

how to make korean Grand max lollipop firmware

First of all I'm so sorry about my broken English.
I am using galaxy grand max g720n0 (Korean Ver.)
Korean version is not on 5.1.1.(India Ver. is on lollipop)
So I want to use India version firmware. Booting was successful when I just leave boot.img, cache.img.ext4, recovery.img, system.img.ext
And everything works fine but no wifi, call, message, data network, no sound(not working speaker)
What can I do with this Kor and Ind firmware? can anybody help?
I want to know too . I also got a G720N0 and it still works on Android 4.4.4 can it update by ourselves?:crying:

[E2312]SIM2 slot not working on 6.0.1 - SOLVED

Hi guys, I need some help!
Everything was fine on Android 5.0
Until I repaird device using XCompanion (to the lastest 6.0.1)
Now only SIM1 slot is functioning. Nothing happens when I insert SIM2 slot
Current build number: 26.3.B.0.131
Has anyone got this problem
Thank you!
//Update:
I flashed back to build 26.1.B.2.102 (android 5.0), 2 SIMcard slots worked normally.
Then I tried to update via OTA, but after the first update to 26.1.B.2.129 (still android 5.0), the SIM2 slot didn't work anymore.
Now I'm desperated.
//Solved
I used old version of Flashtool (18.5) instead and it worked!
paracetamol183 said:
Hi guys, I need some help!
Everything was fine on Android 5.0
Until I repaird device using XCompanion (to the lastest 6.0.1)
Now only SIM1 slot is functioning. Nothing happens when I insert SIM2 slot
Current build number: 26.3.B.0.131
Has anyone got this problem
Thank you!
//Update:
I flashed back to build 26.1.B.2.102 (android 5.0), 2 SIMcard slots worked normally.
Then I tried to update via OTA, but after the first update to 26.1.B.2.129 (still android 5.0), the SIM2 slot didn't work anymore.
Now I'm desperated.
Click to expand...
Click to collapse
Maybe you've Flash single sim rom

baseband help request

at the origin, there was firmware HC 3.0.1 ver. XXKI1 (Vodafone).
later I downloaded original samsung firmware P7500XXLQ8_P7500OXALQ8_P7500XXLQ8_HOME.tar.md5 (4.0.4 ITV) and table works fine, I browse in 3G really fine.
later I needed Nougat, then I updated my device by following thread:
https://forum.xda-developers.com/ga...stable-7-1-setup-google-voice-bigger-t3768344
tablet is rooted, twrp 3.11 installed.
almost everything works fine, the modem hooks the carrier of Vodafone Italy but only in GSM mode and I can receive only SMS.
nothing to do for browsing in 3G.
does a solution exist to browsing in 3G with Nougat with Vodafone Italy?
does a nice person exist who suggests me a work-around, an engineering code to modify baseband or have I to resign?
thanks, thanks, thanks

Questions about VoLTE and firmwares

My Xperia 1 is on HK firmware and hasn't gotten updates for over three months. Other regions have gotten the latest updates to fix the bugs but I still have to stand the crappy fingerprint sensor. Now I decide to flash SEA firmware but I hear that if I do so, I can't use VoLTE. Is that true? Does VoLTE support have anything to do with firmwares, SIMs, carriers, etc.? Thx.
Ningyou Higeki said:
My Xperia 1 is on HK firmware and hasn't gotten updates for over three months. Other regions have gotten the latest updates to fix the bugs but I still have to stand the crappy fingerprint sensor. Now I decide to flash SEA firmware but I hear that if I do so, I can't use VoLTE. Is that true? Does VoLTE support have anything to do with firmwares, SIMs, carriers, etc.? Thx.
Click to expand...
Click to collapse
If you live in HK, are using a local carrier and are on the HK firmware, then VoLTE will work.
If you live in HK and flash a non-HK firmware, VoLTE will no longer work.
MeltdownSpectre said:
If you live in HK, are using a local carrier and are on the HK firmware, then VoLTE will work.
If you live in HK and flash a non-HK firmware, VoLTE will no longer work.
Click to expand...
Click to collapse
Actually I'm in mainland China and using China Unicom, but VoLTE is working fine.
Ningyou Higeki said:
Actually I'm in mainland China and using China Unicom, but VoLTE is working fine.
Click to expand...
Click to collapse
HK firmware might have the necessary IMS profiles for VoLTE to work in China, which is why it could be working.
You could try flashing to a different regions firmware, if it still works, great. If not, you can flash back to the HK firmware.
MeltdownSpectre said:
HK firmware might have the necessary IMS profiles for VoLTE to work in China, which is why it could be working.
You could try flashing to a different regions firmware, if it still works, great. If not, you can flash back to the HK firmware.
Click to expand...
Click to collapse
In present situation I am busy working at home and have to use the phone a lot, so I have to think twice before doing so. That's why I asked the question first.?
Chinese carriers' VoLTE works on SEA firmware, but the signal strength is rather poor, you can simply flash the SEA firmware and receive OTA updates if you don't mind the signal problem. If you can't bear it, you can try this method to get VoLTE working normally. Beware that OTA updates would be unavailable, you'll have to repeat following steps every time you update.
1. Download both HK and SEA firmware.
2. Make a copy of these four files from HK firmware:
Code:
oem.map
oem_other.map
oem_other_X-FLASH-CUST-A2CD.sin
oem_X-FLASH-CUST-A2CD.sin
3. Paste them into SEA firmware folder.
4. Flash the firmware. (If you want to keep your data and apps, delete files starting with name "appslog diag userdata" before flashing.)
Singhoi Mo said:
Chinese carriers' VoLTE works on SEA firmware, but the signal strength is rather poor, you can simply flash the SEA firmware and receive OTA updates if you don't mind the signal problem. If you can't bear it, you can try this method to get VoLTE working normally. Beware that OTA updates would be unavailable, you'll have to repeat following steps every time you update.
1. Download both HK and SEA firmware.
2. Make a copy of these four files from HK firmware:
Code:
oem.map
oem_other.map
oem_other_X-FLASH-CUST-A2CD.sin
oem_X-FLASH-CUST-A2CD.sin
3. Paste them into SEA firmware folder.
4. Flash the firmware. (If you want to keep your data and apps, delete files starting with name "appslog diag userdata" before flashing.)
Click to expand...
Click to collapse
Thx very much! Could I try Taiwan firmware instead to get better signal and avoid replacing OEM files? Although it has slower updates than SEA one, it is still much faster than HK one. And it seems that no one complains its signal.
Ningyou Higeki said:
Thx very much! Could I try Taiwan firmware instead to get better signal and avoid replacing OEM files? Although it has slower updates than SEA one, it is still much faster than HK one. And it seems that no one complains its signal.
Click to expand...
Click to collapse
TW firmware doesn't support Chinese carriers' VoLTE, I've tried before.
Singhoi Mo said:
TW firmware doesn't support Chinese carriers' VoLTE, I've tried before.
Click to expand...
Click to collapse
Update finished. I tried calling and no VoLTE icon appeared by the signal icon or on the UI of dialer, but LTE icon didn't change to H+/3G. Did that mean VoLTE was enabled?
Edit: VoLTE seems to work now. I typed *#*#4636#*#*, and in Phone Info I saw Voice Network Type is LTE, and Signal Strength is -82 dBm 58 asu which may be a good signal.
Singhoi Mo said:
Chinese carriers' VoLTE works on SEA firmware, but the signal strength is rather poor, you can simply flash the SEA firmware and receive OTA updates if you don't mind the signal problem. If you can't bear it, you can try this method to get VoLTE working normally. Beware that OTA updates would be unavailable, you'll have to repeat following steps every time you update.
1. Download both HK and SEA firmware.
2. Make a copy of these four files from HK firmware:
Code:
oem.map
oem_other.map
oem_other_X-FLASH-CUST-A2CD.sin
oem_X-FLASH-CUST-A2CD.sin
3. Paste them into SEA firmware folder.
4. Flash the firmware. (If you want to keep your data and apps, delete files starting with name "appslog diag userdata" before flashing.)
Click to expand...
Click to collapse
please explain method flash rom for resolve this problem . thank you.

Question Flashing UK version of XQ-BC52 on TW XQ-BC72 (.oem files for Volte & Wifi Calling)

Hi Everyone,
Can anyone help me with process for flashing UK version firmware of XQ-BC52 on Taiwan version of XQ-BC72. I need to know which firmware files such as ".ta" or any other files to be removed from firmware folder before flashing. The UK or US customization versions supports volte and Wifi calling in my country.
Currently the Taiwan firmware version is at 61.0.A.23.20 (android 11) and UK firmware version is at 61.1.A.2.211 (android 12)
Can I just flash the .oem files of UK firmware to TW firmware?. But, since device firmware versions are different, flashing may fail and corrupt the device. Can you confirm if this is safe to flash?.
Request your help!
ralf_waldo said:
Hi Everyone,
Can anyone help me with process for flashing UK version firmware of XQ-BC52 on Taiwan version of XQ-BC72. I need to know which firmware files such as ".ta" or any other files to be removed from firmware folder before flashing. The UK or US customization versions supports volte and Wifi calling in my country.
Currently the Taiwan firmware version is at 61.0.A.23.20 (android 11) and UK firmware version is at 61.1.A.2.211 (android 12)
Can I just flash the .oem files of UK firmware to TW firmware?. But, since device firmware versions are different, flashing may fail and corrupt the device. Can you confirm if this is safe to flash?.
Request your help!
Click to expand...
Click to collapse
I think yes but r u sure that customized UK fw supports voLTE and WIFI calling? the switches are in the settings? because I have the same model but with eea customized and have no volte or/and vowifi switches.... My carrier supports them btw
I've been told the customised SEA also has Volte and VoWifi wnabled, but I never got any joy out of it when I flashed it into my HK BC72 device. I have tried the previous firmware revision of the UK one, but nothing there either.
Ndlelex said:
I've been told the customised SEA also has Volte and VoWifi wnabled, but I never got any joy out of it when I flashed it into my HK BC72 device. I have tried the previous firmware revision of the UK one, but nothing there either.
Click to expand...
Click to collapse
So if I flash it to my XQ-BC52 will it affect anything? I don't want to lose anything, but I want to use volte I have no idea why it isn't enabled when all of the carriers on my country support it
I would first update it to the newest TW Firmware and check if it works (so you can update, without loosing personal data).
If it still doesn't work, I would try the HK firmware, because of Over-The-Air–Updates (OTA). I have VoLTE and VoWifi in Switzerland with this firmware.
If it still doesn't work, try the BC-52 firmwares (but you loose OTA Updates).
Please just check after flashing a new firmware if you have the functions. If it works, first do a repair with Sony Companion before starting to install everything (like apps, files....). This makes a clean install and avoids a lot potential of failures/problems.
I bought the phone in Etoren and it is the model XQ-BC72, I live in the UK, and the update I received via OTA and is installed is 61.1.A.2.211 release-keys. you shouldn't, I guess Sony recognizes you're in the UK and installs the correct one
LaceeWearsPrada said:
So if I flash it to my XQ-BC52 will it affect anything? I don't want to lose anything, but I want to use volte I have no idea why it isn't enabled when all of the carriers on my country support it
Click to expand...
Click to collapse
You won't lose your data if you explicitly tell it not to clear userdata off your phone, if that's what you mean. If, however, you're referring to certain functionalities I sometime hear of getting lost, then I myself haven't noticed such with all versions of firmware I have tried out so far.
PlatinCH said:
I would first update it to the newest TW Firmware and check if it works (so you can update, without loosing personal data).
If it still doesn't work, I would try the HK firmware, because of Over-The-Air–Updates (OTA). I have VoLTE and VoWifi in Switzerland with this firmware.
If it still doesn't work, try the BC-52 firmwares (but you loose OTA Updates).
Please just check after flashing a new firmware if you have the functions. If it works, first do a repair with Sony Companion before starting to install everything (like apps, files....). This makes a clean install and avoids a lot potential of failures/problems.
Click to expand...
Click to collapse
I've yet to do a clean install, the way you have described it. I guess I'll do it just like that when I've given up on trying to activate VoLTE and VoWifi on my phone. It's interesting that your Hong Kong phone has that function over there. I suppose there is some substance in Sony's insistence that the one's network provider be engaged as well.
I was considering getting the Xperia 1 IV which would be a nice upgrade from my Xperia 1 II but with volte not working it would push me away. I managed to get it working on my Xperia 1 II by simply flashing SEA firmware. It was straight forward and has worked flawlessly with OTA updates. It doesn't look like the Xperia 1 IV will work that way. Even if I was to flash SEA firmware it looks like volte still wouldn't work. Come on Sony sort this problem out

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