How to repair serial number in MTK phone? - Android Q&A, Help & Troubleshooting

HI, I have an MT6582 phone without nvram folder, in my phone the serial number is necessary for OTA updates, but I lost it with the format option in SP flashtool.
I have a nvram folder of another identical phone but when i restore it, everything is restored unless the serial number. It still 0123456789ABCDEF.
How do I fix ?, Is the serial number stored anywhere else?
Thanks for the help and sorry for my english.
EDIT: I also tested the SN write tool and IMEIS work but S/N still 0123456789ABCDEF

Nothing?

hi i have thl4000 mt6582 with same problem , imei lost after every flash of custom rom, but can repair with sp flash tool, but serial writer not working.

Related

[Q] IMEI is correct but no network detected MT65xx

First I'm so sorry if my question is similar with another threads. But I'm pretty sure I have been looking for the answer around the internet and of course XDA developer for a week. I follow every guide and method I found. But it still not answer of my problem.
I flashing camera driver I've got from my friend backup using TWRP backup. Actually I only need to choose uboot only to install. But I'm in hurry so I accidentally choose everything includes NVRAM. Since then I've got wrong IMEI on my phone because the IMEI overwritten with my friend phone. But it's not a problem because I can restore my original IMEI with MTKDroid & Tools.
And the problem is my IMEI is now back and corrected. But there is no network detected on the phone. SIM card detected fine. When I go to EngineerMode by pressing *#*#3646633#*#* and open Radio Information on CDS I saw IMSI field was unknown and Radio Status is turning on and off rapidly.
What I have done is :
1. Full flashing with the stock ROM via SP Flash Tools.
2. Change the IMEI with MTK Droid Tools
3. Change the IMEI with AT command ... echo 'AT+EGMR=1,7,"myIMEI1"' >/dev/pttycmd1
No result. IMEI is correct but no network.
I believe this is not a hardware problem, so please help me to solve this problem. Because it's my only phone to communicate with my whole families. I really appreciate with your help. Thanks.

rewrite permantly imei - nvram

Hello guys! I have a problem with imei. I have a MTK device. I flash it to.upgrade to 4.4 . i lost imei. I try to replace with engineering MTK But not work. If i replace with mtkdroid work But if i Reset the Phone i lost again. I found old backup, if i try to flash it not recognized imei (maybe because for the upgrade i use flash tool into "format all + download"?)
However i try to upgrade again and with mtkdroidtool i replace the nvram. Its OK...But the imei si not Like under the battery. Well ... Write manually imei...work...But Like before if i Reset phone i lost imei But not all !!! On the phone rema in the old wrong imei.
So...i.think ...there si some kind of tool to rewrite imei manuallu forma restore.permantly?

How to fix my Lenovo a7000 imeo number permanently

Sir I downgrade my Lenovo a7000 to marshmallow to lollipop with sp flash tool with original stock rom and by mistake I select format and install in so flash tool and software install successfully but my imei number , serial never is deleted so I root my phone and re write my imei number again but when I format or reset my phone my imei number deleted again ..
I tried many method for fixing my issue permanently but all fail like imei number writer tool , my droid , meta tool but it's all not working even I install all driver too but still is does not show mobile ..
I think I facing low network issue too after my imei number problem.
Please give solution..

Lost IMEI Vernee Apollo MT6797

I accidently completely wiped and bricked the phone when trying to update the recovery through SP Flash Tool.
Now there isn't any IMEI and have tried fixing it with the following but still comes up with invalid IMEI:
SN Writer
IMEI&SN Writer
Chamelephon
Openening Engineering Mode doesn't have any option for CDS to re-write the IMEI.
I have the original two numbers as well.
I managed to write the IMEI with *#6813#
Any idea why calls go straight to message bank when calling this phone?
I am unable to call out from it either.

[HELP] LOST EFS PARTITION

I lost my EFS partition when recovered my phone via EDL, crying now
Well, I flashed Engineering Rom from here https://androidfilehost.com/?fid=4349826312261824846
And I changed IMEI1 IMEI2 MAC and BT addresses through some tools (Qualcomm IMEI Repair Tool / QMSL IMEI&SN Writer v1.4)
Rebooted system after changes made...
F*** It's ok! I see "20:00:00:00:00" at mac address info while wifi is off, IMEI SV info is "00" and changing serial doesn't worked.
The changed wifi address value only works while Engineering Rom is running, otherwhise the value changes back to 00:0a:f5:e8:b9:f8 ohhhhh f***, this happens when I update to stock rom.
I have QFIL and QPST installed on my machine, I enter diagnostic mode and I can see the contents of the EFS partition, my doubts are: is there a way to permanently change the data in "IMEI1 IMEI2 IMEI SV SN BT WIFI etc." so that new roms read the "default"?
What are the value chains I should change? .xqcn file editing made global changes?
Please help me
Please someone help me
I am able to pay for a program like this, I just want to factory restore
Devmobdroid said:
I am able to pay for a program like this, I just want to factory restore
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