yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] Cleopatra Bianchi:
answer

Also my A3 Pro V1.2 LIGHT version looks pretty sweet.

Regarding the Project Treble, I am already working on it.

But I cannot confirm anything at this point.

Please be patient (and fingers crossed).
[General Questions and Answers] shifi_11:
Thanks thats all i wanted to know. Waiting patiently.
[General Questions and Answers] kd7eir:
Do I need to install each ROM in order, or can I just go straight to the light ROM?
[General Questions and Answers] Cleopatra Bianchi:
answer

You can go straight to the light rom.

Follow very carefully all the steps at the 8th post.
[General Questions and Answers] kd7eir:
Thank you.
[General Questions and Answers] kd7eir:
I went straight to the light ROM with no issues at all. Thank you for your work on this project.
[General Questions and Answers] delpinsky:
Grande Cleopatra!

I've just bought the phone for my uncle, so I'll follow your thread with pleasure.
[General Questions and Answers] kozmo2k4:
Thank you [MENTION=7332068]Cleopatra Bianchi[/MENTION] for working on this phone.

Very much appreciated.

Got the A3 Pro yesterday, connected WiFi, let it OTA update to V1.2_20181221.

Turned off, followed to OP directions to install TWRP and got it rooted with Magisk.

Works like a champ.

This is a really nice phone for the price ($99 on Amazon, minus some gift cards). We will see how it holds up in everyday use.
[General Questions and Answers] KimLe:
Bought Umidigi A3 Pro on Amazon for $95 free shipping.

Installing straight to the light rom then Magisk.

All work out, has no problems at all.

Thanks Cleopatra Bianchi...

Today 1/17/2019

***It is reduced price on Amazon $89.99 -%5 ( clip the coupon) = 85.50$ free shipping***
[General Questions and Answers] BlackX777:
I think I bricked my A3 non Pro. I firmware upgraded the light rom with sp flash tool and it said ok.

Now screen stays black volume up + power doesn't work.
[General Questions and Answers] I.F.A.:
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://xdaforums.com/showpost.php?p=79603220&postcount=134 phone worked but now the fingerprint has disappeared, how can it be restored (fingerprint)?

Thanks!
[General Questions and Answers] kozmo2k4:
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.php?mod=viewthread&tid=18835&extra=page%3D1

I do not believe there currently is a TWRP for that release. Maybe [MENTION=7332068]Cleopatra Bianchi[/MENTION] would have time to take a look at it.

FYI.
[General Questions and Answers] gianni888:
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
[General Questions and Answers] kd7eir:
No. And for good reason - there is no legitimate reason to do that.
[General Questions and Answers] gianni888:
nvram fingerprint

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
[General Questions and Answers] gianni888:
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 ?
[General Questions and Answers] kd7eir:
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.
[General Questions and Answers] 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 ?
[General Questions and Answers] Palxion:
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...
[General Questions and Answers] handyflo:
i have the same Version and Problem, any Suggestion for Android 9 users?
[General Questions and Answers] Ostfriese2010:
Lost Fingerprint scanner-how to restore?

Anyone knows how to restore the Fingerprint scanner on Umidigi A3 pro (build v1.4 20190803), ive lost it by flashing an N Version of the Firmware... :(
[General Questions and Answers] handyflo:
Is there any chance that we will a light Android 9 version with working TWRP recovery for the A3 pro N version?

Currently I have Android 8.1:

Umidigi_A3_Pro_N_V1.4_20190425

Any try to update to Android 9 results in a not working TWRP and unstable os
[General Questions and Answers] handyflo:
Any update?
[General Questions and Answers] daniel1887:
Android 9 for Umidigi A3 pro with 8.1 vendor

Here is a Android 9 Version inclusive TWRP with 8.1 shipped Handys, fingerprint doesnt work

flash it about SP flash tool

https://mega.nz/#!Z4dQnayB!R0bWQFULWiHYkyNsvqkZVsfirD0Uzg8NwS2SJgp1KPU

User with Android 8.1 and TWRP can flash over TWRP Havoc OS this is Android 10

https://sourceforge.net/projects/ex....0-20191225-ARM64A-Unofficial.img.xz/download

Notes:

1. In TWRP go to install change from install zip to install IMG and use the system.img file and flash system not vendor
[General Questions and Answers] handyflo:
Thanks for the Android 9 update.

I could not find these version here, is this customized?

https://community.umidigi.com/forum.php?mod=forumdisplay&fid=209

Any issues by someone with that?

What is havoc Android 10 update?

I have the A3 pro n version with pre installed Android 8.1 and TWRP installed, can I use Android 9 or 10?
[General Questions and Answers] handyflo:
does not work this version :(

Please flash this ROM only if your phone is shipped with Android 9.0 system. This software is NOT compatible with Android 8.1 phones!

https://community.umidigi.com/forum.php?mod=viewthread&tid=18937&extra=page=1
[General Questions and Answers] Samuel805:
how long do i have to wait to boot the system? my phone has been idle for 10 min
[General Questions and Answers] ernstschwar:
I have a Umigidi A3 Pro with Android 9 (32GB version) Version says V1.6_20201222. I need help finding a TWRP / Root method for this version. Only option is to somehow downgrade it ? Thank you!
[General Questions and Answers] handyflo:
Hi all,

is there any chance that we will se an update for:

Umidigi_A3_Pro_N

with

Android 8.1:

and current Software Version:

Umidigi_A3_Pro_N_V1.4_20190425

or

UMIDIGI_A3_Pro_N_V1.4_20190416 from here: https://community.umidigi.com/forum.php?mod=viewthread&tid=18713
[General Questions and Answers] handyflo:
Did anyone mangae to install Android GSI / Treble to the:

Umidigi_A3_Pro_N

with

Android 8.1:

and current Software Version:

UMIDIGI_A3_Pro_N_V1.4_20190416 from here: https://community.umidigi.com/forum.php?mod=viewthread&tid=18713

I tried this version:

lineage-18.1-20211214-UNOFFICIAL-treble_arm64_avS.img.xz

from:

Andy Yan's personal builds // GSI - Browse /lineage-18.x at SourceForge.net

sourceforge.net

without sucess, the device does not boot after flashing the .img file within CWRP (Team Win Recovery Project 3.3.1.0 repack Cleopatra81

treble_arm64_a should be the right image, or am i wrong, my Treble Info Check App said so?
[General Questions and Answers] liott:
Can you explain why you thought this lineageOS rom would work? I am also desperately looking for a solution for an upgrade. Only Cleopatra Bianchi could help; unfortunately he is not active anymore
[General Questions and Answers] handyflo:
I checked the 2 treble apps (Treble info & Treble Check), they said this (sorry for the german screenshots):
[General Questions and Answers] handyflo:
Does anyone Had success to Install a treble Rom to get an newer Android instead of Stock 8 / 9?
[General Questions and Answers] marceldossantos91:
I am struggling myself. what i don't understand is i successfully booted Crdroid PHH GSI with A10. but that was the first time around, since i updated to V1.4 firmware im unable to, i tried downgrading to 1.1 but it stays in black screen when i do, hopelessly trying that myself :/ i don't know how i got it to boot the first time around, just simply refuses now. worse - even my FP no longer works since this update. also can't find V1.3 link anywhere.
[General Questions and Answers] marceldossantos91:
I succeeded :)) and im going to share for everybody exactly how i did this, because it was no easy process.

I noticed that - PHH Gsi's do boot unrooted with dm verity disabled, once you root, the phone goes into an unbootable state.

so instead of using the attached verity disabler, i used "disable dm-verify force encrypt 03.04.2020" first.

i then flashed a PHH crdroid A10 GSI - i used an AgN build since its an A-only device.

i then booted crdroid just fine, but root was still a major issue, the fix in the end was using phh-magisk 21 instead of normal magisk, and boom, working GSI.

though since system partition only 2.4GB big, A11 is virtually impossible to install, its to big.

i also had to flash gapps but that was no prob after using "Resize system" option.

i then formatted userdata and booted.

also - i lost my fingerprint and have no idea how to fix it since reflashing stock rom. i also lost imei but i fixed this by using "format all + download option" and imei's got fixed.

the phone is way more usable on GSI and its much much faster, only thing not working for me on GSI is VoLTE.

i also noticed a horrific nonstop GPS wakelock, i downgraded boot img to V1.3 boot image instead of V1.4 and the wakelock disappeared, and now device deep sleeps.

if we had a way to just resize system a tiny bit bigger, we could try our luck with A11, but hey, A10 is achievement unlocked ;)

if anyone know how to fix fingerprint.. please let me know (its broken in stock too)
[General Questions and Answers] Liding Liding:
this TWRP 3.3.1-0 can be installed on UMIDIGI Power 7 Max?

or would you recommend another one?
[General Questions and Answers] kd7eir:
Most likely you can recover from this.

Post #6 clearly states "I use umidigi A3. Will it work for me Absolutely not. This thread is reserved exclusively to the Umidigi A3 Pro"

So, why would you flash it to your NON PRO?

The good news is that you can get a stock NON PRO Rom and probably flash that and get your phone back.

https://community.umidigi.com/forum.php?mod=viewthread&tid=17572
[General Questions and Answers] Cleopatra Bianchi:
answer

I shall never tire of repeating : This thread is reserved exclusively to the Umidigi A3 Pro !

I suggest you to download the stock firmware (for Umidigi A3) from the Umidigi official site.

Then, to flash it by SP Flash Tool (use "Firmware Upgrade" option onto SP Flash Tool.
[General Questions and Answers] BlackX777:
Flashed the the newest stock firmware all ok again thx

there is also a root guide thats all i wanted :cyclops:
[General Questions and Answers] max270:
Need help! By tragic accident my NVRAM has been damaged and the backup has been damaged too.Now my A3 Pro can't see cellular network. By *#06# it shows nothing . Extremely need donor's NVRAM .
[General Questions and Answers] Cleopatra Bianchi:
answer

STEPS :

1) Onto dial menù type the next sequence : *#*#3646633#*#*

2) Onto Telephony tab scroll down until GPRS

3) Tap on GPRS

4) Write your two IMEIs onto SIM1 & SIM2

5) Reboot the phone
[General Questions and Answers] max270:
Oh I already did it. The answer is "fail to write imei due to radio unavailable or something else"

I still need NVRAM
[General Questions and Answers] Cleopatra Bianchi:
answer

Try the next solution - ROOT REQUIRED

STEPS :

1) Download/install "Terminal emulator for Android" by Jack Palevich.

2) Tap on "Terminal emulator for Android" apk.

3) Type su (and tap Enter).

4) Type the next command :

echo 'AT +EGMR=1,7, "IMEI_1" ' >/dev/radio/pttycmd1 (and tap Enter)

NOTE : replace IMEI_1 with your first IMEI

5) Type the next command :

echo 'AT +EGMR=1,10, "IMEI_2" ' >/dev/radio/pttycmd1 (and tap Enter)

NOTE : replace IMEI_2 with your second IMEI

6) Reboot the phone.
[General Questions and Answers] max270:
Done but still nothing.After it trying add IMEI again through GPRS and still "fail to write imei due to radio unavailable or something else".

Please guys.Give me NVRAM.

Just replaced NVRAM (have backup) through TWRP to another NVRAM from A3 phone. MAC has been changed.

Bluetooth don't changed. IMEI still not shows.

Tried change IMEI via terminal.Device rooted.But answer was Permission denied.
[General Questions and Answers] Cleopatra Bianchi:
answer

Try "Cryptotel Chamelephon" apk - ROOT REQUIRED

Little info : this apk has been removed from the store.

http://www.mediafire.com/file/roiukdxq5zl9tuz/Cry_IMEI.zip/file

IMPORTANT : After changing the IMEIs, reboot the phone.
[General Questions and Answers] max270:
Try "Cryptotel Chamelephon" apk - ROOT REQUIRED

Did it yesterday and today.Now trying rewrite IMEI by SN_Writer tools.I think best way re-place NVRAM via flash tools..

I don't know maybe it important-when phone just rebooted and loaded android I see inscription Simprocessor.After a couple sec it disappear.

---------- Post added at 12:33 PM ---------- Previous post was at 11:55 AM ----------

Hooray! I did it. I replaced NVRAM and NVDATA.Both partitions has been backup via TWRP from A3 Android treble_arm64_agN-userdebug_9_PQ1A190105004. After replace the partitions IMEI has been changed and I return it back via termianl. My IMEI now not changed back after reboot. For first look all works correct.
[General Questions and Answers] trkcnky:
thanks :good::good: but is there any chance to get gcam for a3 pro?
[General Questions and Answers] s80_gad:
Few more questions

Greetings to everyone and especially to Cleopatra Bianchi for providing us with that great tutorial!

I hope Cleopatra Bianchi won't mind couple of additional questions.

1. First of all, I have just received my A3 Pro (haven't started it yet) and I want to make a proper full backup of the phone with SP Flash Tool. Can you advise me what version of SP Flash Tool to use and what is the best way to do it (I'll appreciate a guide with couple of images in it, if possible)?

I have used SP Flash Tool before but just don't want to mess up the device as it might be different.

2. I very much like the idea of the Umidigi A3 Pro V1.2 LIGHT version (Thanks for that as well Cleopatra Bianchi )

May I ask if you can point what has been removed or at least the main difference?

3. You are saying that we can flash directly the Light version? Can you advise which steps we have to follow first from the original post in order to root the phone first?

Thanks a lot for all the replies. I appreciate all that has been posted in the thread and XDA so far!

Regards

Again, I am sorry if the questions are too much - I have done it previously but I am not familiar with that specific phone so just want to get it right, I hope you'll understand
[General Questions and Answers] Cleopatra Bianchi:
answer

After numerous failed attempts (with original and modded versions of gcam),

I was able to find three different gcam versions that work well onto A3 pro.

I have placed the three gcam apps inside the following rar :

https://mega.nz/#!ap9SSQZB!Qrtx1uuoXsAAwmFKunmKPv42lMJS2bgwmY5SvUn2acA

I have tested all three apps onto Umidigi A3 Pro V1.2 LIGHT version.

Feel free to install the one that you want.

In my view, the gcam 3.2 apk could be the best.

The phone does not require the "Camera2API enabler" or "persist.camera.HAL3.enabled=1".
[General Questions and Answers] Cleopatra Bianchi:
warning

WARNING !

Pay attention to the following screenshots :

If any of you own a phone with the same characteristics :

- DO NOT flash the stock roms of this thread !

- DO NOT flash the TWRP of this thread !

- DO NOT flash the V1.2 LIGHT version !
[General Questions and Answers] kozmo2k4:
[MENTION=7332068]Cleopatra Bianchi[/MENTION] : Would you care to point out the differences between the phones, please?

Thank you.
[General Questions and Answers] Cleopatra Bianchi:
answer

I do not own that phone (A3_Pro_N_V1.1_20190103).

Then, I can not run any test on it.

I can deduct the differences between the "old A3 Pro" and the "new A3 Pro" from the screenshots.

The largest difference is the size of the ROM : 16GB (instead in the "old A3 Pro" the ROM is 32GB).

But I am pretty certain that there are other differences.

The story :

Yesterday an owner of the "new A3 Pro" contacted me.

He told me that his phone has a 2019 firmware.

That is what made me suspicious.

It is because there is no 2019 stock rom onto Umidigi official website.

I checked the OTA update, but there was no 2019 update.

He sent me two screenshots of his phone (you can see them).

I have noticed the differences (ROM size and the letter "N").

I recommended him to do not make any modifications onto his A3_Pro_N_V1.1_20190103.

After publishing my post (warning-post) on XDA,

a Russian guy tried to flash my Light rom onto his A3_Pro_N_V1.1_20190103.

He bricked his phone (you can see it on 4pda - post number 220).

It is the proof that my suspects were justified.
[General Questions and Answers] kozmo2k4:
Thank you for explaining the difference between the two phones.
[General Questions and Answers] Oleg Petrovich:
"N" firmware

We, on 4PDA posted the firmware from the "N" from UMIDIGI A3, can compare.

I can't insert a link to the message with the firmware. On 4pda.ru the topic of firmware Umidigi A3. In the cap threads there is a link.

There, a few posts below I have described the differences between the firmwares.
[General Questions and Answers] Cleopatra Bianchi:
answer

Dear Oleg Petrovich,

I appreciate your post.

But you are talking about the "N" firmware (UMIDIGI_A3_N_V1.0_20181222) for Umidigi A3.

Instead, I am talking about the "N" firmware (UMIDIGI_A3_Pro_N_V1.1_20190103) for Umidigi A3 Pro.

Please be careful to do not confuse the two different phones.

Someone already tried to flash an A3 Pro firmware onto an A3 phone.

The result has been a bricked phone.

Yesterday I have written to Umidigi forum to ask them the UMIDIGI_A3_Pro_N_V1.1_20190103 firmware.

:)
[General Questions and Answers] Slwtch:
Official firmware from A3 Pro is perfectly installed on A3. But then the essence of the debate is that on phones the new revision (with the letter "N") you can't put the firmware of phones an old version. But on the contrary can be installed.
[General Questions and Answers] Cleopatra Bianchi:
answer

You wrote : "Official firmware from A3 Pro is perfectly installed on A3".

Are you really sure ?

Please read carefully the following post :

https://xdaforums.com/showpost.php?p=78745285&postcount=20

It is meaningless to continue talking about Umidigi A3 (and all experiments on it).

This thread is reserved exclusively to Umidigi A3 Pro.

WARNING :

I am not responsible for any damage caused by mixing A3 firmwares and A3 Pro firmwares.
[General Questions and Answers] Eraser77:
I have the same problem as max270 early wrote

I never had the same problem
[General Questions and Answers] Dongzkie0695:
please help me i flash the stock rom of umidigi a3 pro without "N" and my original version is A3_Pro_N_V1.1_20190103 .. I need that rom please help me..because my baseband verion and my imei is completely unknown...... please give me a link.. thank you
[General Questions and Answers] Slwtch:
http://4pda.ru/forum/index.php?s=&showtopic=933026&view=findpost&p=81229879

Regarding the letter "N" - I agree - it is better not to mix firmware.
[General Questions and Answers] Cleopatra Bianchi:
answer

Dear Slwtch (or it would be better if I call you Slwtch0201),

This dispute between you and me reminds me a film called "Atomic Blonde".

Do you remember the plot of "Atomic Blonde" ?

It tells the story of spies.

I just want to speak to you from the heart.

I am not here to compete with you (or somebody else).

But I am here because I want to help people.

It would be better put aside the personal animosity (a kind of Cold War).

It would be better join forces.

I want you to remember that nikita Rayse is still waiting for any help.

I want you to remember that nikita Eraser77 is still waiting for any help.

Yours faithfully, Cleopatra Bianchi

;)
[General Questions and Answers] afitorres:
Lost my fingerprint lock option.
[General Questions and Answers] Cleopatra Bianchi:
answer
[General Questions and Answers] Just_Me_01:
will it for for my a3 pro V1.2_20181221 or i will flash the version above that is mention ???,, because mine already upgraded..
[General Questions and Answers] Cleopatra Bianchi:
answer

The version above is the Light version (more free space onto System).

The version above is already rooted and the twrp is already included.
[General Questions and Answers] juicecultus:
Just flashed the LIGHT firmware on my N version A3 Pro

Just wanted to confirm that the LIGHT firmware works perfectly onto my A3 Pro which came with the N version of 20190103 firmware out of the box.

It’s the 3GB/32GB version sold in the UK on Amazon - there was a flash sale £85.
[General Questions and Answers] Cleopatra Bianchi:
answer

Before to flash my Lite rom,

do you have tried to make a backup of the original N firmware ?

I will try to explain that better :

Flashing my Lite rom onto your A3 Pro N firmware version,

you have deleted permanently the original 20190103 N firmware.

On the Umidigi official website there is no trace of the A3 Pro 20190103 N firmware.

Then, you can not go back now.

However, you are doubly lucky.

Why are you doubly lucky ? For the following two reasons :

1) My Lite rom seems to work properly onto your A3 Pro N version (I hope so).

2) At this moment, I have in my hand the most important blocks (img) of the A3 pro N version.

The next time, before doing experiments, I suggest you to contact me by pvt.
[General Questions and Answers] juicecultus:
I’m returning this and getting a replacement in a couple of days - just let me know in private what you need from the new ROM and how I could get it.

Btw - the light ROM is stable but battery life is poor (from 90% this morning at 10 to 66% at 3pm without touching the phone and no SIM installed).