NV partition gone - General Questions and Answers

Hello , yes i erased the nv partition by a mistake , but, i still have the box with 2 dual sim IMEI and ither 2 codes on it, someone told me i can repair them but dont know how exactly. Should i use Maui meta or Sn writer tool? Do i need nv backup of another redmi 9 to do this? I remember many years ago i did it but i really cant remember how

The /NV partition not only holds the IMEI but other important data, too, such as SN, Baseband, product code, BT/WiFi mac address, RIL calibration files, DRM info and some other data like language, timezone set by your provider.
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xXx yYy said:
The /NV partition not only holds the IMEI but other important data, too, such as SN, Baseband, product code, BT/WiFi mac address, RIL calibration files, DRM info and some other data like language, timezone set by your provider.
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Ty for helping, can i ask you wich one of those Is foor Google authentication? I have SN , imeis and others, but seems like i cant use sn writer to writer those, my NV partiton Is erased, i tried to flash nvram and nvdata with no luck, tried with SPFT gives errors, tried via fastboot but there Is a protection and doesnt work.
Now i flashed twrp and installed magisk, i wonder how i can remove those protection that wont allow me flash those partitions.
Aniway only thing not working Is the signal ( but detects Sims) , and Google , seems like invalid Mac address too

IDK

what exactly does not work with SN Write Tool?
"It allows users to flash various options apart from flashing the IMEI only. It supports Barcode, BT Address, Wifi Address, Wifi EPPCopy, Mac Address, DRMkey MCID."
the funny thing is you did the same stupid mistake like years ago..

I get errore messages, seems like my PC fails to connect, i do t know if needs CDC drivers, but i cant Install them because my PC wont Install unsigned drivers even if i try to disable that with CMD, changing boot options, or tools to allow that, maybe because its a light, modded version of windows and Is missing many services and sruff, aniway i fixed It by using Maui Meta winth a ENG rom, second IMEI was ok but had still the dm Verity corrupted, then i installed Magisk and disabled Verity check teough Fastboot when flashing Vbmeta.
I still have invalid Mac no serials etc, but everything Is working indont really Need to write those, i can Remember using SN write tools before with another windows
, Will try when i change OS, thank you
aIecxs said:
what exactly does not work with SN Write Tool?
"It allows users to flash various options apart from flashing the IMEI only. It supports Barcode, BT Address, Wifi Address, Wifi EPPCopy, Mac Address, DRMkey MCID."
the funny thing is you did the same stupid mistake like years ago..
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Did you write Mac address?

aIecxs said:
Did you write Mac address?
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I did not, i can ONLY use Maui Meta v 10, i dont understand HOW and if i can use the NVRAM editor to write that. I researched a bit but found nothing about that

I think you need to select proper baseband from database, then just enable one more checkbox for repair Mac address, thats it.
Or do you mean SN Write Tool isn't working at all? The flashing procedure is same as for SP Flash Tool, you need VCOM preloader drivers installed and device powered off.

Related

[MTK][TOOL][APP] MTK 0x10 NVRAM FIX

Hello guys,
After updating my app MTKTransfROM, I'm here to introduce you my new simple little app that fix the most famous MTK WiFi Bug for who change Custom ROM everyday the NVRAM WARNING: Err = 0x10.
It is a label that appear on your WiFi Networks indicating you a MAC NVRAM error. It's there due to a /data reset that hasn't been correctly restored by your new ROM.
As I'm a fanatic of Custom ROM, It is pretty annoying to fix it every time by entering Engineer Mode, Take WiFi MAC, put it in a special menu, bla bla bla...
So I created an app which do it in milliseconds. It's really little app and doesn't require any permission, IT ONLY REQUIRE ROOT ACCESS to write to NVRam Folder.
Here's the link: Play Store
It's AD FREE, but if you want to support my work and buy me a beer or a pizza ( I'm Italian ) here's the donation link: DONATION
Thanks for Reading
can you send it to me?i cannot download form googleplay,because i come from china
my email is [email protected],thanks
Thanks man, that helps!
I lost my 5ghz band after using this app
Please update this app to support 5ghz band also
I had to restore the NVDATA to make it work again
Please I am having NVRAM WARNING ERR =0X02 after using this app. How do I fix that please cos it showing up on my wifi setting
nvram warning err 0x02
@wesleyel did you already find a solution?
I'm facing this error on my Xperia XA Ultra (F3211) after I tried to set a new wifi mac address by editing the WIFI file in the /data/nvram directory because I first had nvram warning err 0x10 any changing mac addresses after every reboot.
The wifi mac address only seems to changes if the mac address starts with 00.
Btw: is there any possibility to read my original wifi mac address? All tested tools only show me 20:00:00:00:00:00 :/
Best regards
dionarap said:
@wesleyel did you already find a solution?
I'm facing this error on my Xperia XA Ultra (F3211) after I tried to set a new wifi mac address by editing the WIFI file in the /data/nvram directory because I first had nvram warning err 0x10 any changing mac addresses after every reboot.
The wifi mac address only seems to changes if the mac address starts with 00.
Btw: is there any possibility to read my original wifi mac address? All tested tools only show me 20:00:00:00:00:00 :/
Best regards
Click to expand...
Click to collapse
Yes I was able to find a solution after a loads of research.
I used an app called chamelemac. You can download it for free on playstore.
Hope it helps you too.
Also am not sure if you can retrieve your old wifi mac except you have an nvram backup or maybe it's written on your phone pack which am not too sure.
Thanks for your reply @wesleyel
Unfortunately the app does not support my device so I tried another one but it did not fix this issue.. So I'll go on searching the internet and trying to find another solution.
Best regards
Hi! I'm typing from a chuwi hi9, equipperd with a MTK8173. I Also had this nvram warig ecc... But, after i've run the app andò reboot the tablet, unfortunately, it don't detective anymore my 5ghz WiFi network, only the 2,4.
How is this possibile?

Need clean NVRAM.bin from Vonino dual SIM smartphone or manual fix of IMEI MAC SN

Hello,
I need clean nvram.bin from Vonino dual SIM smartphone preferably with 4G support
I deleted by accident ID information of my vonino zun x and I need to restore - SN, IMEI1, IMEI2. WIFI MAC, BT MAC
I am asking for nvram.bin, because I have no idea how these IDs are stored on phone, but read that this info is inside nvram.bin
If someone knows how this info can be manually entered in phone ROM, by modifying files or engineering mode this will be best solution for me.
My phone is currently working because I entered IMEIs via terminal command in engineering mode, but if I reset phone this info is cleared and also SN. WIFI MAC and BT MAC are not restored
Please help!
Thank you in advance

After flash empty serial number

Hello!
My problem is after i flashed back to kitkat rom my tablet i saw that the serial number is empty. Is it possible to write back somehow?
Thanks
use chamelephone app or fix permanently using SN writer(assuming your device is a mtk powered one)
aswinp222 said:
use chamelephone app or fix permanently using SN writer(assuming your device is a mtk powered one)
Click to expand...
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I tried SN writer, but didn't work. I not found MT8127 database file.
zolee166 said:
I tried SN writer, but didn't work. I not found MT8127 database file.
Click to expand...
Click to collapse
I had same problem in my a710f.. how to fix that? tablet works good but When I install stock rom was installing a lot of apps....(system apps)
zolee166 said:
Hello!
My problem is after i flashed back to kitkat rom my tablet i saw that the serial number is empty. Is it possible to write back somehow?
Thanks
Click to expand...
Click to collapse
There is no way to restore the serial number to this tablet after you formatted it (yes, unfortunately you formatted it) but the serial number is not that important! The important thing is you also lost the wifi MAC address and every time you connect to the the wifi router the tablet will write a random address.
To fix this use version 1.1648 of SP Meta Tool because it is compatible with your tablet and by using it you can write permanent address (any address you want) .

Where is the device MAC address stored?

I think I've accidently wiped a partition - maybe nvram - possibly through an overzealous use of SP Flash or mtkclient whilst trying to install a GSI ROM. However it happened, I now have no device MAC and a generic serial number. Can I manually recreate them? Either with a 'setprop' through adb or hex edit on a dumped/reloaded partition? I've dumped the nvram partition and it's all zeros, so I'm guessing it's the one I need to rebuild/recreate.
The device is a Lenovo M7 tablet, and I've restored it to stock with Lenovo's rescue tool - that didn't restore the device MAC, and I get that. It's working fine but it has a new device MAC address on every reboot. I think what is happening is the system software is giving out a random MAC because there is no device one. The serial number is no big deal, but I'd like a fixed MAC if possible.
Edit: Android 11 Go
Ok, bumping with a related question.
In which partition/image is the device MAC stored?
I'm only guessing it was in nvram.
(Btw, I tried a factory reset too but that didn't restore the device MAC either)

[Help] Finally fixed IMEI, how MAC address?

Hello guys after formatting everything with SP Tools, i was desperated but finally managed to fix the second IMEI on a redmi 9 Lancelot. I used Maui Meta 10, the latest version , because its the only one workng for my phone, i am on an engineering Rom , and was finally able to fix the second IMEI
Now the problem is that i still have an invalid Mac Address starting with 0 , and in engineering rom i still see the error "nvram error =0x10", i believe because of invalid MAC
I can fix this error and the mac address by flashing a Nvram.bin and Nvdata.cfg , but since they contains 2 IMEI, the SIM signal will not work, because first IMEI should be Null.
If i flash NVram and then ii open Maui Meta, and i try to write 00000000000 on the first imei, it still doesnt work, because thats is a number even if is 0, to work it should be Blank, but if delete first IMEI leaving it blank, it will not write anything, and will remain the IMEI from the other Nvram.bin
That means if i write the second imei on erased nvdata and nvram partitions, i will have SIM signal, but not the Mac Address, and if try to flash Nvram from other devices, i will have valid MAC and no errors, but i cant use the sim card because the first IMEI is not blank.
I dont know what to do, i heard you can fix the MAC address after flashing the stock rom too, rooting the phone. Is that true? And will this fix the RAM ERROR = 0x10 too?
Do i have to write the barcode too to be able to use google account again? Or its just impossible? Thank youu
NV partition gone
Hello , yes i erased the nv partition by a mistake , but, i still have the box with 2 dual sim IMEI and ither 2 codes on it, someone told me i can repair them but dont know how exactly. Should i use Maui meta or Sn writer tool? Do i need nv...
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