Most Sensor not Working - Xiaomi Mi 4C

Hi All,
I just got my second hand Mi4C here for fe days and I have an issue regarding with the some sensor which is not working. Following is the sensor which is not working :
1. Accelerometer
2. Orientation
3. Gyroscope
4. Magnetic
Try to reflash ROM with Dev or stabel rom didn't solve the issue, flash with TWRP or MiFlash is also the same.
MIUI Custom ROM doesn't help at all.
When I check the sensor availability from sensor box apps, all of sensor is there but there is no data grab from the sensor.
Try to clean all flash with MIUI 6.1.7 china dev flash all sensor working normal but than after restart the problem come back again.
So far only this ROM can work but only at first boot, trying another ROM is not help even on first boot.

Asoet77 said:
Hi All, I just got my second hand Mi4C here for fe days and I have an issue regarding with the some sensor which is not working....
Click to expand...
Click to collapse
Hi, sensor issues are usually caused by corrupt 'persist' partition. Please do:
copy the attached zip file to the main folder of internal storage
'install' the zip from TWRP
find 'backup.tgz' in the main folder of internal storage
post the tgz here (attach or link to an external server)
If your 'persist' partition is corrupt, I will post a working one for you.

unlock your bootloader, then flash persist.img via fastboot.. you can't find persist.img inside image folder after extracting fastboot rom (tgz) not zip file

k23m said:
Hi, sensor issues are usually caused by corrupt 'persist' partition. Please do:
copy the attached zip file to the main folder of internal storage
'install' the zip from TWRP
find 'backup.tgz' in the main folder of internal storage
post the tgz here (attach or link to an external server)
If your 'persist' partition is corrupt, I will post a working one for you.
Click to expand...
Click to collapse
Thanks for your assistance, anyway a couple days a go I just realize and do some trial and error.
Somehow when I am not insert SIM 1 with any SIM card, the sensor is working fine without problem. Is it related with the hardware issue?
I am not able to attach file since I am new user, I will send the link from PM.
bo_cah said:
unlock your bootloader, then flash persist.img via fastboot.. you can't find persist.img inside image folder after extracting fastboot rom (tgz) not zip file
Click to expand...
Click to collapse
Thanks will try.
Regards,
Asut

Please fix the file, i need persist.img , i have same problem from my mi4c

Lukynamikaze said:
Please fix the file, i need persist.img , i have same problem from my mi4c
Click to expand...
Click to collapse
Hi Luky,
Can you try to unplug the SIM Tray??? I just realize when SIM Tray isn't inserted the sensor is working but, once the SIM tray inserted even there is no SIM card inside the sensor will stop working.

Lukynamikaze said:
Please fix the file, i need persist.img , i have same problem from my mi4c
Click to expand...
Click to collapse
Here is the original persist.img from libra_images_6.1.7 attached.
Extract it and run:
Code:
fastboot flash persist persist.img
It should respond:
Code:
target reported max download size of 536870912 bytes
sending 'persist' (4672 KB)...
OKAY [ 0.156s]
writing 'persist'...
OKAY [ 0.094s]
finished. total time: 0.250s
:good:

k23m said:
Here is the original persist.img from libra_images_6.1.7 attached.
Extract it and run:
Code:
fastboot flash persist persist.img
It should respond:
Code:
target reported max download size of 536870912 bytes
sending 'persist' (4672 KB)...
OKAY [ 0.156s]
writing 'persist'...
OKAY [ 0.094s]
finished. total time: 0.250s
:good:
Click to expand...
Click to collapse
My mine act like a weird, the sensor stopped working once the sim tray inserted even there is no SIM inside.
To solve it I need to re-plug the battery connector and put the SIM card back to SIM 2 than it back to normal.

Asoet77 said:
My mine act like a weird, the sensor stopped working once the sim tray inserted even there is no SIM inside.
To solve it I need to re-plug the battery connector and put the SIM card back to SIM 2 than it back to normal.
Click to expand...
Click to collapse
glad to hear that, so the problem doesn't exist anymore??

bo_cah said:
glad to hear that, so the problem doesn't exist anymore??
Click to expand...
Click to collapse
At the moment yes, but only for certain SIM Card not all.
But still the root cause isn't find yet still wondering why this can happen.

Related

OPO freezed, restarted and it does not know the SIM and the date

Hello friends,
I suffer from the problem: While I listening to music this morning, my 38R OPO freezed, restarted and then it does not know SIM, date, storage and cannot open Wifi connection. My charge was about to %80-90, after that I flashed org stock, it started and rebooted after every 5 seconds at language page. I flashed mahdi then and nothing is changed. I restored my 25R backup before, now opening but still doesnot see time date sim storage, and it writes continuously "android.com.systemui stopped." Lastly i tried closing and fully charging it and nothing changed again. I cant use it now. Please help?
Does it still display your IMEI in About Phone?
Transmitted via Bacon
Here you will find your solution!
http://forum.xda-developers.com/showthread.php?p=55488755
timmaaa said:
Does it still display your IMEI in About Phone?
Transmitted via Bacon
Click to expand...
Click to collapse
I cannot open the phone it restarts itself again and again :/ .
markbencze said:
Here you will find your solution!
http://forum.xda-developers.com/showthread.php?p=55488755
Click to expand...
Click to collapse
I just giving it a try, when finished I will inform you, thanks so much.
markbencze said:
Here you will find your solution!
http://forum.xda-developers.com/showthread.php?p=55488755
Click to expand...
Click to collapse
It worked!
Adamsın be adamsın ADAMIN DİBİSİN!! )
You're the king man.
Here is the output:
C:\OPO>fastboot erase persist
< waiting for device >
erasing 'persist'...
OKAY [ 0.072s]
finished. total time: 0.073s
C:\OPO>?
'?' is not recognized as an internal or external command,
operable program or batch file.
C:\OPO>?
'?' is not recognized as an internal or external command,
operable program or batch file.
C:\OPO>
C:\OPO>fastboot flash persist persist.img
target reported max download size of 536870912 bytes
sending 'persist' (4244 KB)...
OKAY [ 0.163s]
writing 'persist'...
OKAY [ 0.251s]
finished. total time: 0.416s

[Stock ROM] CAT B15Q ROM development

CAT has not yet managed to put official stock images or the kernel source code available - even for their oldest phones (even though they are required to)... so here's at least a beginning.
Every firmware archive contains the four partitions UBOOT, BOOTIMG, RECOVERY and ANDROID (/system). These are flashable using spFlashTool, a howto is here: http://forum.xda-developers.com/android/help/howto-firmware-flashing-cat-b15q-t2989627.
Please note that these firmware files were dumped from an EMEA B15Q, dual-sim - there are reports of other models being available under the B15Q model name. In doubt, always make a full backup using spFlashTool's readback mode before flashing one of these. (You should be doing these anyway before every firmware upgrade, CAT doesn't test stuff like compatibility with root!)
Credits for the scatter file go to bigal1337. Credits for spFlashTool and the driver package go to Russian website mtk2000.ucoz.ru.
1.019: https://mega.co.nz/#!UEp0hS7b!6aiqETvAu1Q9voNZtMLWoztbF7FGX0j9Pnj4rBhwoD4
1.022: https://mega.co.nz/#!YEAwmbxI!rVonLybVo6PL2bhNloGStR0EacKwE3-3hILzY9ri0NY
Scatter file: https://mega.co.nz/#!UEp0hS7b!6aiqETvAu1Q9voNZtMLWoztbF7FGX0j9Pnj4rBhwoD4
Tested tools:
MTK Driver package: http://mtk2000.ucoz.ru/down12/MTKUsbAll_0.9.2.rar
spFlashTool: http://mtk2000.ucoz.ru/down12/SP_Flash_Tool_exe_windows_v5.1420.00.rar
Do note that the drivers appear to be modified Google drivers and thus have no digital signature; you will need a 32-bit system to use them.
Flash mode needed for spFlashTool is achieved by removing the battery, starting the flash/readback in spFlashTool and then plugging in the USB cable. You may put in the battery afterwards.
The recovery, fastboot and factory test methods are entered by shutting down the phone and then:
recovery mode: press power + volup for 2 seconds, then release power, release volup as soon as recovery has booted
fastboot mode: press power + center for 2 seconds, then release power, release volup as soon as recovery has booted
test mode: press power + voldn for 2 seconds, then release power, release volup as soon as recovery has booted
In case that a B15Q or general CAT board is opened (for the B15, B15Q and the flagship S50), I request that this thread is moved into its rightful place. And in case anyone wants to help me with a CyanogenMod port, please PM me.
CWM Recovery
Using mtkdroidtools, I have built a CWM Recovery image to be flashed with spflashtool, all based on 1.022 firmware. There are two variants:
using stock Mediatek USB IDs: https://mega.co.nz/#!FRxxiRSC!EN5gORcYPtFONlH3V8-Yco3_w9RGhE8jevicedlT2kI
using Samsung USB IDs: https://mega.co.nz/#!8MowBZCJ!fhs-mXpGZR36g9JJh3IONIlOKBHIktFBDIrpynlK84M
The difference between them is that recovery #1 uses the same Mediatek USB id's as the stock image (and thus requires the Mediatek drivers in Windows, which sucks because these are not signed), and recovery #2 uses the USB IDs from a Samsung tablet - so you need the Samsung ADB driver instead, which is digitally signed and far more stable than the Mediatek.
Samsung USB ID fix
See above for the reason; the boot.img with Samsung USB IDs is at:
1.022: https://mega.co.nz/#!gcREQJKD!FCrxl9-PWSWM0_2Nh9D1KeA-zFV4nS9dmd6zjVnqPLc
Hybrid SD Card
And the CWM Recovery + boot.img for those who want to try out the "hybrid SD card" from http://forum.xda-developers.com/android/help/howto-external-sd-card-internal-storage-t2989650, the two images of 1.022 are here:
boot.img: https://mega.co.nz/#!MMYx1BYY!Rlnrxl1MURMgnx2luvPdYKJjMmNMbYVIGyFlGeRVcMY
recovery.img: https://mega.co.nz/#!wZQ1FIrS!iXAYfF3pgSySYsQ3f8ygGkDWE3Ulebx3JFgzRKXWNjs
I used this, it's great! Now I have 16gb of "internal phone memory" and 14 of "external" sd card. Did not see any performance issues with my SanDisk Extreme III. Do not need root anymore, I wanted it only for link2sd. Thanks harddisk_wp!!!
walckenaerius said:
I used this, it's great! Now I have 16gb of "internal phone memory" and 14 of "external" sd card. Did not see any performance issues with my SanDisk Extreme III. Do not need root anymore, I wanted it only for link2sd. Thanks harddisk_wp!!!
Click to expand...
Click to collapse
Great to hear someone was crazy enough to replicate my hack But I strongly advise you to keep off OTA updates with the hack enabled.
harddisk_wp said:
Great to hear someone was crazy enough to replicate my hack But I strongly advise you to keep off OTA updates with the hack enabled.
Click to expand...
Click to collapse
i have got a message that my sd card is damaged... and there is no way to remove that notification? any ideas?
thanks!
mccloud90 said:
i have got a message that my sd card is damaged... and there is no way to remove that notification? any ideas?
thanks!
Click to expand...
Click to collapse
With or without the SD hack? Try putting the SD card into a Windows machine, chkdsk the fat32 partition. Then plug it into a linux machine and run e2fsck on the data partition.
harddisk_wp said:
With or without the SD hack? Try putting the SD card into a Windows machine, chkdsk the fat32 partition. Then plug it into a linux machine and run e2fsck on the data partition.
Click to expand...
Click to collapse
I tried the sd hack. There was a problem with my sd card partitions... but i reformated it with partition magic and now it works like a charm. No lag or anything.
Better than i was thinking
Greatings!
after one week
OKAY,
after one week of usage my phone became laggy and unstable.
Maybe this is because of my sd card but.... its 10class, i dont know
So i reflashed with the original partitions and now its fast and stable
Custom Rom
Will there be any possibility to create a Lollipop rom for this device?
proximity sensor problem
Do someone have the problem with the proximity seonsor that i have? There is a screen turning on immediately after turning of when the phone is placed next to my head when i am calling. This leads to a lot of changes in settings and everything that my face is changed durring the phone call.
I tried a lot of apps from play store that "fix" the problem but... they work not on 100% proper.
The sensor is working at 100% i have checked it already.
Please give me suggestions because its very annoing!!
Hi!
mccloud90 said:
Do someone have the problem with the proximity seonsor that i have? There is a screen turning on immediately after turning of when the phone is placed next to my head when i am calling. This leads to a lot of changes in settings and everything that my face is changed durring the phone call.
I tried a lot of apps from play store that "fix" the problem but... they work not on 100% proper.
The sensor is working at 100% i have checked it already.
Please give me suggestions because its very annoing!!
Click to expand...
Click to collapse
I had the same problem. CAT support told me to reset the phone to factory. I tried a lot of other things but only the factory reset helped me. My sensor was also working correctly, I also tried several Apps to chack this.
Give it a try. I know it's a lot of work, but it was (in my case) worth it. I changed the time an date settings with my face which lead to missed alarms and oversleeping
Greets,
Doggy
Current ersion?
Doggy77 said:
Hi!
I had the same problem. CAT support told me to reset the phone to factory. I tried a lot of other things but only the factory reset helped me. My sensor was also working correctly, I also tried several Apps to chack this.
Give it a try. I know it's a lot of work, but it was (in my case) worth it. I changed the time an date settings with my face which lead to missed alarms and oversleeping
Greets,
Doggy
Click to expand...
Click to collapse
You have hard reseted to what rom version? 1.19 or 1.22
I will give it a try
I need the phone rooted and i am not sure if the cwm recovery can be flashed over 1.19 as it was my original rom and i flashed it to 1.22 from files here on the forum
any news about any cyanogenmod rom?
Just to tell you that the new official update is awsome!!! Upgrade as fast as possible Greatings!
CAT B15 help
Hi guys, i'm sorry i have to ask this in this forum but i've been asking for a couple of months now, and got no answer. I have a CAT B15 (not the B15Q). It is single sim version (IMEI write on the back) and i managed to do plenty of things in it. I swapped memory and worked fine, and even i installed a Dual Sim android rom and i managed to use the secondary Sim bay in it (that was tapped with a plastic fake sim) and used the phone with 2 sims for like 2 weeks. Then i started to play with deodex and build.prop and softbricked the phone, but it was piece of cake since it is easy to unbrick. The problem was that i wrongly flashed the phone with scatter file, and flashed all partitions in it, EBR1, MBR, UBOOT, etc, etc. The result was a non-working dual SIM phone. Everything works, but the SIMS, it does not detect any SIMs in it, in any of the SIM bays, and the IMEIs are wrong numbered. I did no buckup of the phone so i'm pretty screwed. I've been asking for someone to upload the EMEA_SS or US_SS ROM for the CAT B15, but nobody responded. I thaught maybe the CAT B15Q has a similar software/bands flashing partitions, but that i leave to you for answer. Anyway, if any of you has the possibility of taking the images of a single sim CAT B15 it would save me this awesome phone for me. I'm also willing to give a 20GB account of ownCloud server for 1-year free of charge if storage space is needed, no problem. This are the links i've been searching and asking.
All About CAT B15: http://forum.xda-developers.com/showthread.php?t=2430904
Root for Catterpillar B15: http://forum.xda-developers.com/showthread.php?t=2263455
Best regards,
proximity sensor problem
I also have the proximity sensor problem.
I have tried the factory reset but the problem is the same.
It has 1.026 rom.
Can anybody post the 1.026 software? Thanks!
yo2lzp said:
I also have the proximity sensor problem.
I have tried the factory reset but the problem is the same.
It has 1.026 rom.
Click to expand...
Click to collapse
Hallo my friend,
i had the same problem and that was so anoyng... so i went back to the shop where i bought my phone and told them about the problem.
After one week they called me and my phone was with changed whole display with everything inside and now i have working proximity sensor
So... i suggest you to go back to the store and tell them about your problem !
All the best!!

What kind of SIM Card does the Coolpad Rogue 330A use?

Hello. I have a question. I am planning to get a Coolpad Rogue at Walmart. What type of sim card does it use? I am very confused.
One video says it uses a nano sim, another video says it uses a regular mini sim, and one website says it uses micro sim. I dunno? For those of you who have the device, can you tell me?
Sent from my Z667T using XDA-Developers mobile app
it uses micro/mini same.... but not too small called nano
..
. 3 types of sim
.
1= Full sim/default size
2=mini/micro
3=nano/extra small
.
or you can say small/medium/large.... so it uses medium SIM
Micro? Ok
Sent from my Z667T using XDA-Developers mobile app
Softbricked my Coolpad Rogue 3320a with SuperSU.
My only options to fix are:
1. Finding someone with a 3320a who is willing to dump their working system.img and upload it for me, so I can download it and fastboot flash the working system.img, to overwrite my corrupted system.
2. Waiting for stock rom to be released.
3. Smashing it with a Hammer.
Someone please be kind/Knowledgeable enough to help.
ApatheticEuphoria said:
Softbricked my Coolpad Rogue 3320a with SuperSU.
My only options to fix are:
1. Finding someone with a 3320a who is willing to dump their working system.img and upload it for me, so I can download it and fastboot flash the working system.img, to overwrite my corrupted system.
2. Waiting for stock rom to be released.
3. Smashing it with a Hammer.
Someone please be kind/Knowledgeable enough to help.
Click to expand...
Click to collapse
You posted a system.img... here's the link:
https://forum.xda-developers.com/android/help/coolpad-rogue-3320a-stock-rom-t3434902
Kotetsukun said:
You posted a system.img... here's the link:
https://forum.xda-developers.com/android/help/coolpad-rogue-3320a-stock-rom-t3434902
Click to expand...
Click to collapse
... Thanks? Lol, I obviously already fixed it if I posted the system.img.

[Completed] Updating Droid 3 and using it as a mini computer

1. I just bought a droid 3 which I rooted. It's android version is 2.3. Can I update it to Android 5.1.1 as in the lollipopto.website or do I have to install android 4.4 as mentioned on the xda developers site under custom roms?
2. I want to use this smartphone as a mini computer without wifi, internet access or phone service. I know there are apps that can be installed that run offline. I would like to do a clear wipe of the phone. I installed Titanium Backup and I have seen lists of apps that can be taken off but I would like to know what are the essential apps that I could leave on, the bare minimum that the phone needs to have just to be functional..
Thanx
cjamps said:
1. I just bought a droid 3 which I rooted. It's android version is 2.3. Can I update it to Android 5.1.1 as in the lollipopto.website or do I have to install android 4.4 as mentioned on the xda developers site under custom roms?
2. I want to use this smartphone as a mini computer without wifi, internet access or phone service. I know there are apps that can be installed that run offline. I would like to do a clear wipe of the phone. I installed Titanium Backup and I have seen lists of apps that can be taken off but I would like to know what are the essential apps that I could leave on, the bare minimum that the phone needs to have just to be functional..
Thanx
Click to expand...
Click to collapse
Hello,
You need to first check if official lollipop is available for your device? If yes, you can upgrade. But some updates include firmware/bootloader updates. So please make the previous updates before proceeding.
As for second issue, there is no list as such but you can delete the ones you consider not important.
But please keep in mind to not delete the core apps or it will end up in a bootloop/Force closes..
Regards
Vatsal,
Forum Moderator.
Vatsal said:
Hello,
You need to first check if official lollipop is available for your device? If yes, you can upgrade. But some updates include firmware/bootloader updates. So please make the previous updates before proceeding.
As for second issue, there is no list as such but you can delete the ones you consider not important.
But please keep in mind to not delete the core apps or it will end up in a bootloop/Force closes..
Regards
Vatsal,
Forum Moderator.
Click to expand...
Click to collapse
I tried to google the apps for droid 3 but nothing came up to that effect. Please tell me how I could find out which ones they are.
thanx so much.
cjamps said:
I tried to google the apps for droid 3 but nothing came up to that effect. Please tell me how I could find out which ones they are.
thanx so much.
Click to expand...
Click to collapse
Hello,
Well you cant. Just check the debloat script for any device and accordingly delete the ones you feel.
It is a hit and trial method.
Regards
Vatsal,
Forum Moderator.
Vatsal said:
Hello,
Well you cant. Just check the debloat script for any device and accordingly delete the ones you feel.
It is a hit and trial method.
Regards
Vatsal,
Forum Moderator.
Click to expand...
Click to collapse
Ok. Thanx.
I successfully rooted my phone but I am having problems installing clockworkmod. I tried the easiest way by installing a ROM manager but get Error while downloading from server. Please make sure you have stable internet connection and that your sd card is inserted and has free space.. It is for this reason that I would probably have an issue getting it from the googleplay store. So I downloaded adb.exe which isn't working either. I don't see it containing any img file that has to be flashed. Is there any simple way it could be installed without using an unlocked bootloader?
Where is the RECOVERY img????
cjamps said:
Ok. Thanx.
I successfully rooted my phone but I am having problems installing clockworkmod. I tried the easiest way by installing a ROM manager but get Error while downloading from server. Please make sure you have stable internet connection and that your sd card is inserted and has free space.. It is for this reason that I would probably have an issue getting it from the googleplay store. So I downloaded adb.exe which isn't working either. I don't see it containing any img file that has to be flashed. Is there any simple way it could be installed without using an unlocked bootloader?
Click to expand...
Click to collapse
After downloading adb and clockworkmod where is the recovery image? I think I tried every website related to a droid 3.
Once your device boots into bootloader mode, type this into the command line.
fastboot flash recovery twrp-2.8.x.x-xxx.img
└ Here modify CWM.img with the name of your CWM recovery .img file.
I downloaded CWM 5.0.2.6 Recovery but there was no recovery-clockwork-5.0.2.6-solana.img file. I downloaded flashify but I am getting an error problem setting up in-app billing lab result .......
How do you do this?
cjamps said:
After downloading adb and clockworkmod where is the recovery image? I think I tried every website related to a droid 3.
Once your device boots into bootloader mode, type this into the command line.
fastboot flash recovery twrp-2.8.x.x-xxx.img
└ Here modify CWM.img with the name of your CWM recovery .img file.
I downloaded CWM 5.0.2.6 Recovery but there was no recovery-clockwork-5.0.2.6-solana.img file. I downloaded flashify but I am getting an error problem setting up in-app billing lab result .......
How do you do this?
Click to expand...
Click to collapse
Hello,
Recovery image is the recovery i.e. Clockwork Mod recovery in this case.
You need to fastboot it.
Regards
Vatsal,
Forum Moderator.
Is the recovery file included in the zip file? I typed in fastboot flash recovery Clockwork Mod recovery and I got an error that clockwork was not found.
cjamps said:
Is the recovery file included in the zip file? I typed in fastboot flash recovery Clockwork Mod recovery and I got an error that clockwork was not found.
Click to expand...
Click to collapse
Hello,
The command is
Code:
fastboot flash recovery <filename>.img
Regards
Vatsal,
Forum Moderator.
cjamps said:
Is the recovery file included in the zip file? I typed in fastboot flash recovery Clockwork Mod recovery and I got an error that clockwork was not found.
Click to expand...
Click to collapse
Thanx for replying.
There is no file named "recovery.img" or any "img" file in the adb zip file.
only a file named recovery.
When I type in the command fastboot flash recovery recovery I get the following information:
Target reported max download size of 520093696 bytes
Sending ‘recovery’ <770> kb . . .
OKAY [0.041s]
Writing ‘recovery’ . . .
<bootloader> Preflash validation failure
FAILED <remote: >
Finished. Total time: 0261s
I downloaded recovery-clockwork-touch-6.0.4.3-quincyatt.img, ran the same command and got the same error.

Need Lenovo Legion 12.0.47 Rom

I need lenovo legion duel 12.0.47 rom to restore some features i have lost
mrgreapes said:
I need lenovo legion duel 12.0.47 rom to restore some features i have lost
Click to expand...
Click to collapse
There's a new global rom 12.0.332 . Which features did you lose?
Fingerprint camera calibrate
1
Alexander 99032 said:
There's a new global rom 12.0.332 . Which features did you lose?
Click to expand...
Click to collapse
Can you provide the rom I can give it a try my y triggers finger print and camera is not calibrating with third party apps
i found the new update 12.0.332
here is the link : https://mirrors.lolinet.com/firmware/lenovo/l79031/official/
use lenovo smart assistance application to flash 12.0.332
i have found the issue why our sensors are not working because we have corrupted our persist partition now we have to find any working persist partition and install it again into out phones
here is the reference article : https://forum.xda-developers.com/t/info-android-device-partitions-and-filesystems.3586565/
then how would it be to restore it, we need an original persist from another lenovo legion or taking it from a rom
I think it works if friends do a Back-Up with twpr help from another Legion device and then install our device.
Method is simple just boot your phone into EDL mode then in qfil tool go to tools select partition management and it will show you all the partitions select persist partition click on management erase the partition and write new one
mustafayurdagul said:
I think it works if friends do a Back-Up with twpr help from another Legion device and then install our device.
Click to expand...
Click to collapse
No you can do it using qfil tool
mrgreapes said:
i have found the issue why our sensors are not working because we have corrupted our persist partition now we have to find any working persist partition and install it again into out phones
here is the reference article : https://forum.xda-developers.com/t/info-android-device-partitions-and-filesystems.3586565/
Click to expand...
Click to collapse
PERSIST - contains data which shouldn't be changed after the device is shipped, e.g. DRM related files, sensor reg file (sns.reg) and calibration data of chips; wifi, bluetooth, camera etc.
Some package installers such as OpenGapps also make use of this partition to read configuration file.
mrgreapes said:
Method is simple just boot your phone into EDL mode then in qfil tool go to tools select partition management and it will show you all the partitions select persist partition click on management erase the partition and write new one
Click to expand...
Click to collapse
Does the fingerprint reader work at this stage?
mustafayurdagul said:
Does the fingerprint reader work at this stage?
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I am not sure but I have tried persist file of every rom available on internet but nothing is working according to the article I have mentioned above persist drive contains information of sensors and camera calibration etc. Not sure about fingerprint but I think so fingerprint is also a kind of sensor
mustafayurdagul said:
Does the fingerprint reader work at this stage?
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If someone make a backup of there working phone persist drive then may be we will be able to restore the functioning of sensors and fingerprint this is just a theory based on the article I have mentioned
I got it from another rom but it didn't work I think if we need a copy of the persiste.img of someone who makes a copy with twrp
Just need a copy it doesn't matter which tool he/she used to extract it
mrgreapes said:
I need lenovo legion duel 12.0.47 rom to restore some features i have lost
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hey..
did u find this fw..? 12.0.47..?
yep i found it but didn't work for me

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