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Umidigi A3 Pro - TWRP & Stock Rom

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By Cleopatra Bianchi, Senior Member on 17th December 2018, 04:19 PM
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19th November 2019, 01:49 PM |#181  
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Help
Hello!
A month ago I bought this device, the firmware was installed UMIDIGI_A3_Pro_N_V1.4_20190425 I wanted to install tvrp (I did not backup), but I did something wrong and the phone did not turn on.
installed the firmware from here the https://forum.xda-developers.com/sho...&postcount=134 phone worked but now the fingerprint has disappeared, how can it be restored (fingerprint)?
Thanks!
29th November 2019, 03:26 AM |#182  
kozmo2k4's Avatar
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For the ones interested, there is a new(er?) version stock firmware, version 1.4, for the original A3 Pro (non "N" !!!!).
It can be downloaded from Umidigi forums directly
https://community.umidigi.com/forum....extra=page%3D1
I do not believe there currently is a TWRP for that release. Maybe @Cleopatra Bianchi would have time to take a look at it.
FYI.
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27th January 2020, 08:11 PM |#183  
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nvram fingerprint
Hello everyone
I am a holder of wet A3 pro N android 9 V1.2 20190910
is it possible to save the nvram location where fingerprint is located with spflashtool? using the method you mentioned
thank you
28th January 2020, 03:12 AM |#184  
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Quote:
Originally Posted by gianni888

Hello everyone
I am a holder of wet A3 pro N android 9 V1.2 20190910
is it possible to save the nvram location where fingerprint is located with spflashtool? using the method you mentioned
thank you

No. And for good reason - there is no legitimate reason to do that.
28th January 2020, 11:50 AM |#185  
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nvram fingerprint
Quote:
Originally Posted by kd7eir

No. And for good reason - there is no legitimate reason to do that.

sorry if my english is not understandable
I rephrase the question
I took this phone recently and would like ROOT rights, but I have seen that with this version of rom it is incompatible
I'd like to downgrade.
I thought there was a way to perform a full backup of nvram, in case of ROM downgrade would I lose all functions including the fingerprint?
If you want to restore the IMEI, you can do it, but the fingerprint function doesn't
Will the function be in an NVRAM memory location? would it be enough to know if the scatter.tx file of this rom contains the call to memory addresses, or is it a system app?
This was my question
if anyone can help me even to clarify my doubts
Thanks again
4th February 2020, 06:37 PM |#186  
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sorry there is a version of twrp for my version Umidigi A3 Pro N V1.2 20190910 android 9 ?
can I downgrade A3_Pro_N_V1.1_20190103 ?
4th February 2020, 09:39 PM |#187  
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Quote:
Originally Posted by gianni888

sorry if my english is not understandable
I rephrase the question
I took this phone recently and would like ROOT rights, but I have seen that with this version of rom it is incompatible
I'd like to downgrade.
I thought there was a way to perform a full backup of nvram, in case of ROM downgrade would I lose all functions including the fingerprint?
If you want to restore the IMEI, you can do it, but the fingerprint function doesn't
Will the function be in an NVRAM memory location? would it be enough to know if the scatter.tx file of this rom contains the call to memory addresses, or is it a system app?
This was my question
if anyone can help me even to clarify my doubts
Thanks again

The fingerprint data is never able to be extracted from a device. WHY someone may want to extract it makes no difference. The fingerprint data is encrypted in a separate chip that cannot be backed up or restored to. Again, there is LITERALLY no legitimate reason to do that. Reset your phone to factory defaults? Take the 15 seconds it takes setup your fingerprint.

Your don't "restore" the IMEI - that is hardcoded into the phone at the factory.
6th February 2020, 04:02 PM |#188  
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sorry there is a version of twrp for my version Umidigi A3 Pro N V1.2 20190910 android 9 ?
I can downgrade A3_Pro_N_V1.1_20190103 ?
what should I do for twrp ?
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11th February 2020, 02:16 AM |#189  
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Hello, my phone has the build number UMIDIGI_A3_Pro_N_V1.2_20191024. I am not finding a stock rom for that build number, here or on the umidigi forums... Anyone have any ideas? Really would like to be able to root this phone, but the more i investigate, im thinking it may not be a possibility yet...
14th February 2020, 09:17 AM |#190  
Quote:
Originally Posted by gianni888

sorry there is a version of twrp for my version Umidigi A3 Pro N V1.2 20190910 android 9 ?
I can downgrade A3_Pro_N_V1.1_20190103 ?
what should I do for twrp ?

i have the same Version and Problem, any Suggestion for Android 9 users?
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