Hello i have recently flashed oreo stock rom after that when ever im trying to install oreo custom roms i end up with no fp .Is there any fix for this fp issue.???
Downgrade to nougat bootloader and modem
restoring an old twrp backup isn't enough right? I need to fastboot flash old firmware? I flashed ore flashable and I have no FP sensor...I restored an old twrp and evrerything works but fp.
Would I need to fully flash an older firmware file OR just the bl/modem? can I use flashfire?
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Hello, I have a problem with my Xiaomi Redmi 4X phone, as I said, I can not flash any Custom ROM for Android 8.1 All this happened after I put my phone in service to replace the display on which I've broken it. Now any version of Android 8.1 I try to flash results in a bootloop. I have to mention 3 things
1. In TWRP when flashing I noticed that all Custom ROMs are stuck in "Flashing system files ..." for a few seconds after saying that it ended flash-but did not abssolut anything.
2. Now a few hours I accidentally flashed Pixel Experince, but now I have the same problem.
3. I can not flash any versions of TWRP.Not much but...
THIS IS HAPPENING ONLY ON THE ANDROID OREO ROMs, Nougat ROMs works perfectlly
Try to flash first latest version of twrp or you can flash redwolf recovery then flash firmware v40 then try clean flash for oreo roms
As mentioned by above user...(latest TWRP recovery and firmware is must)
Flash latest TWRP recovery, 3.2.1-0 should be fine but there's update available 3.2.2.-0 so any will do.
Next, flash latest firmware.
Clean flash is must when changing OS.
It's most likely you don't have latest TWRP recovery and firmware.
Do backup first.
Fingerprint not detecting since I have installed custom ROM after I have installed official Oreo
On official Oreo fingerprint shows up in settings but in custom Oreo all works fine and best but fingerprint doesn't show up in any settings I have tried 4 8.1 custom roms like sex pixelexpirience 64 bit versions all works flawlessly tested Google camera it works the best but not detecting fingerprint even after searching fingerprint it only shows up gestures's fingerprint in gestures's system menu PLZZ give me link of official Oreo build OPSS28.65-36-3 with Indian band so I could try to flash via fastboot and then recheck if custom roms fingerprint gets detected or not..
Update ur bootloader to Oreo one and then try flashing the rom
Surya Guduru said:
Update ur bootloader to Oreo one and then try flashing the rom
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Click to collapse
I don't have fastboot official oreo link can anyone give me plzz
hondraopranav said:
I don't have fastboot official oreo link can anyone give me plzz
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Click to collapse
U told u had the official 8.1 ROM ....in that ...... fastboot Flash bootloader bootloader.zip and fastboot flash modem non-hlos.bin
change the base of your fp to nougat base again
Hey check this out
Surya Guduru said:
U told u had the official 8.1 ROM ....in that ...... fastboot Flash bootloader bootloader.zip and fastboot flash modem non-hlos.bin
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Click to collapse
The OP didn't say they had the official 8.1 ROM, they said they had installed official Oreo. AFAIK There is no official 8.1 ROM for Sanders. Some people have taken the OTA for their device and repackaged it into an UNofficial flashable package, but that's not the same thing, and reportedly may be causing problems on EU & US variants, so I wouldn't recommend it.
I have the same problem with my FP reader.
I don't have an official 8.1 ROM (because there isn't one, lol), but I installed stock nougat 7.1.1 (retus, in my case) and then got the OTA upgrade to 8.1, after that fp+VoLTE are 100% working.
Then, as soon as I change to a custom 8.1 (or 9) ROM, VoLTE still works, but the fp is no longer recognized by the system.
If I flash back to stock nougat, FP comes back (and LTE breaks, but can be fixed by installing the 8.1 OTA upgrade again, or by getting to a root terminal and fixing permissions on /persist, I've personally verified both methods to restore functionality (assuming your /persist is unmolested - if it is, you're SoL).
Going from fully working official nougat or official Oreo, to any Oreo (or Pie) custom ROM still seems to break the FP reader again. I'm getting really tired of wiping my device...
Not A Solution #1
As suggested here: With FP + VoLTE working under official 8.1 OTA update, I installed TWRP & backed up /EFS, then installed my custom 8.1 ROM (Validus final) and restored the backed up /EFS, but instead of bringing my FP back, it just caused bootloop and I had to roll back to stock and start over. I skipped rolling back to Nougat before flashing custom, is that important? Why would it matter?
Not A Solution #2
After installing the custom 8.1 ROM I tried flashing the Nougat FP base. It had no effect.
Maybe A Solution? UPDATE: YES. A SOLUTION.
As suggested in this post:
1 - download the latest nougat stock rom (link removed - the correct one will vary depending on your device, up to you to obtain the correct firmware);
2 - unzip the above file and cd into the resulting directory;
3 - reboot your phone in fastboot mode;
4 - from terminal (linux or windows, in linux I had to do it as root user, using sudo), type:
fastboot flash bootloader bootloader.img <enter>
fastboot flash modem NON-HLOS.bin <enter>
fastboot reboot <enter>
By doing above steps, your phone should get fingerprint options back.
I did this, it worked, with one additional step - I had a pattern set before. After the fingerprint reader was 'reinstated' the pattern no longer worked. Rebooting into Recovery and flashing lockfix.zip removed the security so that I could set it up again properly. Find lockfix.zip in this post.
Hi previously i have tried all the roms and all were working properly without any issues then i switched to Stock miui again (Indian Firmware flashed via MiFlash Tool)
then again i flashed twrp and now trying to install custom roms but all roms having the same issue
i.e. - wifi doesn't turns on, Flashlight doesn't work and camera doesn't work.
P.S. - i have india varient device and i always installl 10.3.16 firmware before flashing roms and also i have formatted data (internal storage)
Edit:- everything fixed after i installed miui eu (10.3.16 )
And then flashed roms now everything is fine
pritish sahoo said:
Hi previously i have tried all the roms and all were working properly without any issues then i switched to Stock miui again (Indian Firmware flashed via MiFlash Tool)
then again i flashed twrp and now trying to install custom roms but all roms having the same issue
i.e. - wifi doesn't turns on, Flashlight doesn't work and camera doesn't work.
P.S. - i have india varient device and i always installl 10.3.16 firmware before flashing roms and also i have formatted data (internal storage)
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Click to collapse
Try extracting the persist.img file from the latest fastboot ROM, then flash this to the persist partition in TWRP. You'll need a TWRP that can access the persist partition, regular TWRP doesn't allow access to it. LR.Team TWRP should be OK.
Did you try using Android 10 beta? Many people had issues when returning from beta.
Try installing MIUI 10.3.16.0 CN using MiFlash first? Many custom ROMs are based on lastest CN MIUI and using it firmware.
I have the LOS ROM installed and while I love it, I love wifi calling even more.
TWRP is installed. Is it possible to flash the stock ROM with TWRP?
I searched....
I don't see why not. Then again I haven't used twrp is years.
I was able to flash a rom based of the stock rom, very easy
Yesterday I unlocked bootloader and tried to install custom rom.
Before that I disabled verity and flashed magisk patched boot.img.
Then I tried to install GSI custom rom.
I even succeeded in the attempt; I was able to install Pixel-experience gsi rom
But then came the issue, I was not able to register fingerprint.
So, I flashed stock rom. Still fingerprint does not work.
I don't have access to MSM flash tool. I tried to flash with italorecife's tool.
I couldn't flash some partitions with it. (Could flash them due to critical partition)
I even relocked the bootloader, still it doesn't work.
I am a newbie, so if someone could guide me on how to use MSM tool, or how to properly flash the stock rom.
Any help is appreciated.
Help - Fingerprint and compass sensors not working
I tried to root my phone. Now the fingerprint and compass sensor not working. I think I messed up with persist.img I tried flashing stock rom through MSMtool, flashing persist through fastboot, nothing works. Sensors not working woith AOSP rom...
forum.xda-developers.com
Forget fingerprint , use facelock , I have used facelock , my device is same problem...
TechnoR1 said:
Yesterday I unlocked bootloader and tried to install custom rom.
Before that I disabled verity and flashed magisk patched boot.img.
Then I tried to install GSI custom rom.
I even succeeded in the attempt; I was able to install Pixel-experience gsi rom
But then came the issue, I was not able to register fingerprint.
So, I flashed stock rom. Still fingerprint does not work.
I don't have access to MSM flash tool. I tried to flash with italorecife's tool.
I couldn't flash some partitions with it. (Could flash them due to critical partition)
I even relocked the bootloader, still it doesn't work.
I am a newbie, so if someone could guide me on how to use MSM tool, or how to properly flash the stock rom.
Any help is appreciated.
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Click to collapse
Your device fingerprint hardware need calibration. It can be fixed at service centre.
Vijay india said:
Forget fingerprint , use facelock , I have used facelock , my device is same problem...
Click to expand...
Click to collapse
TechnoR1 said:
Yesterday I unlocked bootloader and tried to install custom rom.
Before that I disabled verity and flashed magisk patched boot.img.
Then I tried to install GSI custom rom.
I even succeeded in the attempt; I was able to install Pixel-experience gsi rom
But then came the issue, I was not able to register fingerprint.
So, I flashed stock rom. Still fingerprint does not work.
I don't have access to MSM flash tool. I tried to flash with italorecife's tool.
I couldn't flash some partitions with it. (Could flash them due to critical partition)
I even relocked the bootloader, still it doesn't work.
I am a newbie, so if someone could guide me on how to use MSM tool, or how to properly flash the stock rom.
Any help is appreciated.
Click to expand...
Click to collapse
After removing the GSI rom, flash the PERSIST partition in fastboot inorder to fix your FP problem.