RF Cali Test (Calibration) fail(Umidigi A13 Pro/Unisoc T610)

mayugoro
Enthusiastic Member

7

22-02-2024, 09:18 AM

#1

Hello,
I have UMIDIGI A13 Pro (Unisoc T610), and the other day I failed to update and it turned blick.
I successed to unblicked using "SPD Factory Tool", but since then my mobile connection has been extremely weak.
When viewed in engineering mode, the "RF Cali Test" fails(Image attached).
I believe this is the cause, but is there a way to fix it? please help.

Attached Files

Screenshot_20230110-215400.png
Size: 221.8 KB / Downloads: 7

mayugoro
Enthusiastic Member

7

22-02-2024, 09:23 AM

#2

Hello,I have UMIDIGI A13 Pro (Unisoc T616), and the other day I failed to update and it turned blick.
I successed to unblicked using "SPD Factory Tool", but since then my mobile connection has been extremely weak.
When viewed in engineering mode, the "RF Cali Test" fails(Image attached).
I believe this is the cause, but is there a way to fix it? please help.

Attached Files

Screenshot_20230110-215400.png
Size: 221.8 KB / Downloads: 7

mayugoro
Enthusiastic Member

7

22-02-2024, 09:42 AM

#3

Hello,I have UMIDIGI A13 Pro (Unisoc T610), and the other day I failed to update and it turned blick.
I successed to unblicked using "SPD Factory Tool", but since then my mobile connection has been extremely weak.
When viewed in engineering mode, the "RF Cali Test" fails(Image attached).

I believe this is the cause, is there a way to fix it? please help.

Attached Files

Screenshot_20230110-215400.png
Size: 221.8 KB / Downloads: 4

psydk
Junior Member

15

23-12-2024, 10:42 AM

#4

spd factory tool erases nvram/nv partition partition that means the tool does not save nv partition during flashing.your cft is not calibrated.

use research download tool backup nv partition of same model or another t610 device and write to your device.
you can use imei write tool or pandora tool unisoc to read write imei sn serial etc.(use windows 10 it will give no error in pandora tool)
this is solution.Hope this helps.

mayugoro
Enthusiastic Member

7

23-12-2024, 02:30 PM

#5

(23-12-2024, 10:42 AM)psydk spd factory tool erases nvram/nv partition partition that means the tool does not save nv partition during flashing.your cft is not calibrated.

use research download tool backup nv partition of same model or another t610 device and write to your device.
you can use imei write tool or pandora tool unisoc to read write imei sn serial etc.(use windows 10 it will give no error in pandora tool)
this is solution.Hope this helps.

Dear psydk,
Thanks for your comment. It's been so long since I posted that I almost gave up on getting replies.
I understood that I need to back up the nv partition from another smartphone.
Unfortunately ,I don't have another phone of the same model now, so it will take a while to try it.
(now I use this model only on wi-fi .)
I have two questions.
1. Can I use the nv partition from a phone with the same SOC (UNISOC T610, e.g. UMIDIGI F3SE), not the same model?
2.Do you know where I can find a reference for the SPD research tool?
(I read tutorial, and know how to flush ROM using the tool, but I want to know what the detailed options of nvram backup)
Thank you.

psydk
Junior Member

15

27-12-2024, 03:47 PM

#6

u can try any unisoc t610 nv file.if that not worked then try with same model.
unisoc/Spreadtrum nv backup and restore process extract zip file and see video.
...
.....
[ Login to download]

mayugoro
Enthusiastic Member

7

28-12-2024, 01:46 AM

#7

(27-12-2024, 03:47 PM)psydk u can try any unisoc t610 nv file.if that not worked then try with same model.
unisoc/Spreadtrum nv backup and restore process extract zip file and see video.
...
.....
[ Login to download]

Dear psydk,
Thank you for the advice and tutorial video! I understand the steps.
As I wrote before, I don't have same working phone (T610 device) now, so when I get one, I try , and report .
Thank you for your kindness.

mayugoro
Enthusiastic Member

7

28-12-2024, 02:39 PM

#8

I don't have another Unisoc T610 phone yet, but I have a T310 phone (Umidigi BISON X10), so I backed up the ProdNV of this model and flashed using the procedure psydk taught me .
The "RF Cali test" still fails, but the mobile connection has improved compared to before flashing.Thank you.

psydk
Junior Member

15

29-12-2024, 07:54 PM

#9

try this nv file of unisoc t610
load pac file
load this file in NV_LTE
keep prodnv same as loaded by pac file no need to change it.
.
..
....

[ Login to download]

psydk
Junior Member

15

29-12-2024, 08:00 PM

#10

don't forget to extract zip file first
extracted file will be in bin format

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