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please help a117 owners, you experiance is needed.

Hello xda friends.... im new here and i need a help from u guys. Please help mee..
i just bricked my micromax magnus a117. What i did--- rooted my phone then installed an app meteos6589 (something like that) to increase app storage. Then i restarded my phone(with usb debugging off(if it afffects anything )). And after that it is showing micromax logo only.
so anyway i downloaded stock rom v4 from mounlisky. and tried to flash with sp tools. But but but problem is arising something like "pmt didnt mathched...................." . So sp tools is saying to select and do format+download option. But i have nothing in backup only microsd and internal sd data.
So the point is i dont have backup of nvram or anything else, phone is bricked at micromx logo, usb debugging off. So how do i get my phone back to life.
anyone please....
Any detailed help is appreciated.. thank you..

so i did it. i flashed it with stock rom. and as i was afraid of it, imei erased. but i got imei back by using mtkdroid tool(got imei numbers under mobile battery) but serial number,bluetooth address lost and in wifi showing avirtual wifi named nvram warning:err= 0*10. how to get them back?

ranganitesh said:
so i did it. i flashed it with stock rom. and as i was afraid of it, imei erased. but i got imei back by using mtkdroid tool(got imei numbers under mobile battery) but serial number,bluetooth address lost and in wifi showing avirtual wifi named nvram warning:err= 0*10. how to get them back?
Click to expand...
Click to collapse
This is a trap that I have fallen into also in the early days of my MTK experience. The way MTKDT backs up data is NOT sufficient to restore a phone or tablet back.
(Sorry, I will rant for a few)
MTKDT backs up the /data/nvram files. I almost wish MTKDT didn't exist because people think they have a copy of everything they need, but it is not everything they need as you've found. (it may have improved since my knowledge is old) The proper thing to do is backup the "NVRAM" block with SP Flash Tool. You would determine where it was by looking at the scatter file. A better safeguard is to backup the whole ROM with SPFT, then you don't even have to worry about offsets, because your offset is 0x0.
Sidenote:
When you wipe the /data partition, the /data/nvram that you've restored using MTKDT will be wiped also. So you will have to restore it again.
I think where you are at now, your only option is to inspect the NVRAM block by dumping it to your computer. You will probably also need to inspect someone else's NVRAM block that has the exact model you have. From there you can look at it with a hex editor and try to figure out how to put your information back. I have to admit, I've only had limit success in doing this. I've found for example where the Wifi MAC should go, but it repeats at different locations within the block and I think I was never successful. To check to see if your hexediting is correct, you wipe /data. On first boot MediaTek's linux/android creates the /data/nvram/* files from what it finds in your NVRAM block.
I'm sorry I'm not more help.

syserr said:
This is a trap that I have fallen into also in the early days of my MTK experience. The way MTKDT backs up data is NOT sufficient to restore a phone or tablet back.
(Sorry, I will rant for a few)
MTKDT backs up the /data/nvram files. I almost wish MTKDT didn't exist because people think they have a copy of everything they need, but it is not everything they need as you've found. (it may have improved since my knowledge is old) The proper thing to do is backup the "NVRAM" block with SP Flash Tool. You would determine where it was by looking at the scatter file. A better safeguard is to backup the whole ROM with SPFT, then you don't even have to worry about offsets, because your offset is 0x0.
Sidenote:
When you wipe the /data partition, the /data/nvram that you've restored using MTKDT will be wiped also. So you will have to restore it again.
I think where you are at now, your only option is to inspect the NVRAM block by dumping it to your computer. You will probably also need to inspect someone else's NVRAM block that has the exact model you have. From there you can look at it with a hex editor and try to figure out how to put your information back. I have to admit, I've only had limit success in doing this. I've found for example where the Wifi MAC should go, but it repeats at different locations within the block and I think I was never successful. To check to see if your hexediting is correct, you wipe /data. On first boot MediaTek's linux/android creates the /data/nvram/* files from what it finds in your NVRAM block.
I'm sorry I'm not more help.
Click to expand...
Click to collapse
So what files are needed to be backup along with mtk droid tool, just wanna know.

ranganitesh said:
So what files are needed to be backup along with mtk droid tool, just wanna know.
Click to expand...
Click to collapse
I don't use MTKDT at all. I do see some uses for it though. SPFT is a pain, but I wish every device (SoC maker) had an SPFT so you could read or write any chunk of flash.
If you look at a scatter file you will see lots of blocks/partitions that the flash is divided into. Each of these has a purpose of course, but the one marked NVRAM (a horrible confusing name) is the most important to get backed up, it has unique "calibration data" for your specific unit. You may find a "nvram.bin" that MTKDT created... this may be exactly what SPFT would backup too... if you are lucky.
So if MTKDT made a nvram.bin that is about 100x better than having a nvram.tgz or however he archives the /data/nvram files.

[Completed] [HELP] Lenovo a606 uknown baseband/invalid imei mtk6582 nothing works

I got this phone (Lenovo A606) about a month ago with the following problems:
1) Modem (the one with the SIM card) doesn't work, status in the about section shows "invalid IMEI" and "unknown baseband". SIM card settings are greyed out in the settings.
2) Wi-fi works fine, but i always have an additional SSID in wifi menu that says 0x010 something error
According to previous owner, it went bad after bad flash or update, but he might have been lying and modem is physically dead due to some reason.
3) Serial number is also a blank
So far i've tried:
1) Flashing different stock firmwares with full flash format and DA DL flags checked/unchecked in SP Flash tool
2) Fixing nvram/trying to restore IMEI and SN through numerous tools of different versions: Maui Meta 3g, SN Writer tool, SN Station Writer tool, infinity box CM2MTK, etc - every one of tools that i've tried (i've also tried different versions of the same tools) show me different errors, best solutions online for which are "check your drivers, change usb cable or change computer" all of which i've obviously tried with the exact same result
3) Fixing nvram by deleting nvram folder in /dev/nvram
4) Replacing MP0B_001 in the nvram folder (rather putting it in, the target folder is empty after stock flashing)
5) Using nvram fixes through both custom and stock recovery menus prepared by the poor bastards like me, but with more knowledge about this stuff
6) Flashing nvram from a donor working phone through SP Flash tool
And since i'm making this post nothing of the above has worked.
So far i've came up with two possibilities:
1) The modem is physically dead and i lost in total 72 hours of my life on a goose chase. If this case is true, how can I make sure of it? Is there a low-level recovery menu or a factory mode that can confirm/deny it?
2) I'm doing something wrong and there is a simple fix for it. In this case, I ask for help guide me in the right direction, if possible with exact instructions.

fdxcd said:
I got this phone (Lenovo A606) about a month ago with the following problems:
1) Modem (the one with the SIM card) doesn't work, status in the about section shows "invalid IMEI" and "unknown baseband". SIM card settings are greyed out in the settings.
2) Wi-fi works fine, but i always have an additional SSID in wifi menu that says 0x010 something error
According to previous owner, it went bad after bad flash or update, but he might have been lying and modem is physically dead due to some reason.
3) Serial number is also a blank
So far i've tried:
1) Flashing different stock firmwares with full flash format and DA DL flags checked/unchecked in SP Flash tool
2) Fixing nvram/trying to restore IMEI and SN through numerous tools of different versions: Maui Meta 3g, SN Writer tool, SN Station Writer tool, infinity box CM2MTK, etc - every one of tools that i've tried (i've also tried different versions of the same tools) show me different errors, best solutions online for which are "check your drivers, change usb cable or change computer" all of which i've obviously tried with the exact same result
3) Fixing nvram by deleting nvram folder in /dev/nvram
4) Replacing MP0B_001 in the nvram folder (rather putting it in, the target folder is empty after stock flashing)
5) Using nvram fixes through both custom and stock recovery menus prepared by the poor bastards like me, but with more knowledge about this stuff
6) Flashing nvram from a donor working phone through SP Flash tool
And since i'm making this post nothing of the above has worked.
So far i've came up with two possibilities:
1) The modem is physically dead and i lost in total 72 hours of my life on a goose chase. If this case is true, how can I make sure of it? Is there a low-level recovery menu or a factory mode that can confirm/deny it?
2) I'm doing something wrong and there is a simple fix for it. In this case, I ask for help guide me in the right direction, if possible with exact instructions.
Click to expand...
Click to collapse
Greetings and welcome to assist. Changing IMEI numbers is illegal and can not be discussed on xda so we have to be careful. If you have the original IMEI number it may be possible to restore it with an octoplus box or something similar but we are limited to what can be discussed on xda
Regards
Sawdoctor

sawdoctor said:
Greetings and welcome to assist. Changing IMEI numbers is illegal and can not be discussed on xda so we have to be careful. If you have the original IMEI number it may be possible to restore it with an octoplus box or something similar but we are limited to what can be discussed on xda
Regards
Sawdoctor
Click to expand...
Click to collapse
Never tried to change it, since there wasn't any imei in the firmware to begin with. I only fruitlessly trying to return sim functionality

changed my imei to emergency

hello
my imei Suddenly changed to 00499901064000
while until a week ago it was good.
i didnt flash any rom ,recovery or ... since 3 months ago.
But suddenly happened
my rom was : gnabo v8 , recovery : cwm
i test full file rom (4 files ) (Official 4.4.2) But it did not change.
also
i use imei changer app But it does not work ( i changed imei to the correct amount but also There are shows messages
not registered on network. , and Emergency calls only. )
How can I solve this problem ?
(sorry for my bad English )

Solve problem by one Restore your backed up EFS folder .
Fail to backup EFS then SEARCH .
<<IMEI etc etc multiple posts >>
Or take to a service center .

JJEgan said:
Solve problem by one Restore your backed up EFS folder .
Fail to backup EFS then SEARCH .
<<IMEI etc etc multiple posts >>
Or take to a service center .
Click to expand...
Click to collapse
Unfortunately i dont have bakcup of efs
and
I have a lot of search but Was useless.
i fixed many huawei imei but But Samsung is very difficult.
its not difficult that i take to a service center . But I like that learn and fix by myself.

Does anyone have backup the efs folder ?
I want a backup of efs folder.
if someone has a N8000 tablet please help me.

Stupid to give out your EFS with potential to clone your IMEI.
Anyway EFS is individual to each persons phone as is IMEI.
Any illegal methods of cloning IMEI are not allowed on XDA .
Sent from my SM-N930F using XDA-Developers Legacy app

JJEgan said:
Stupid to give out your EFS with potential to clone your IMEI.
Anyway EFS is individual to each persons phone as is IMEI.
Any illegal methods of cloning IMEI are not allowed on XDA .
Sent from my SM-N930F using XDA-Developers Legacy app
Click to expand...
Click to collapse
I do not want to use another person IMEI.
I want to replace my IMEI in EFS folder.
And
I know XDA rules.
I do not want to change my IMEI. I want to fix it.

I copied my friend s EFS folder .
Now . How to i change imei and serial number ?
Because i want myself imei and SN .
I traied to change nv_data.bin with HEX editor but its not work !
How to i edit nv_data.bin ?
Please help me . And sorry for my bad english.

And ...
My imei didnt change
It s :0049.....
But , SN changed

Mediatek - flashed FW, lost IMEI

Hey everyone!
I have a Teclast M30 (MTK6797) tablet.
I updated it to the latest firmware with the flashing tool, and lost my IMEI and SIM card capabilities.
No baseband, IMEIs are null.
Things I tried:
- Restore NVRAM, NVCFG and NVDATA with the flashing tool, after editing the scatter file to make them downloadable.
- Used TONS of tools, like various versions of MauiMETA, ModemMETA, SN Write Tool, R&W tool, and others.
- Use MDDB & APDB files from other/older FW versions.
- Relocking the bootloader, just for kicks.
- Generating MP0B_001 file and placing it into the directory mentioned in a post here.
- Obviously, different SIM cards, to eliminate the possibility.
- Using the technician code in the dialer. The relevant option is not listed in the Communications tab.
Any suggestion is welcomed. I really have no idea what to do at this point, especially considering that the tablet is being used constantly due to the quarantine, and ordered a SIM card to allow family members to communicate via video where there's no WiFi.
Thank you and best health!

munky-head said:
Hey everyone!
I have a Teclast M30 (MTK6797) tablet.
I updated it to the latest firmware with the flashing tool, and lost my IMEI and SIM card capabilities.
No baseband, IMEIs are null.
Things I tried:
- Restore NVRAM, NVCFG and NVDATA with the flashing tool, after editing the scatter file to make them downloadable.
- Used TONS of tools, like various versions of MauiMETA, ModemMETA, SN Write Tool, R&W tool, and others.
- Use MDDB & APDB files from other/older FW versions.
- Relocking the bootloader, just for kicks.
- Generating MP0B_001 file and placing it into the directory mentioned in a post here.
- Obviously, different SIM cards, to eliminate the possibility.
- Using the technician code in the dialer. The relevant option is not listed in the Communications tab.
Any suggestion is welcomed. I really have no idea what to do at this point, especially considering that the tablet is being used constantly due to the quarantine, and ordered a SIM card to allow family members to communicate via video where there's no WiFi.
Thank you and best health!
Click to expand...
Click to collapse
Flash the stock firmware that you previously had on the device before you updated. It might restore your IMEI.
Other than that, as stated in the XDA forum rules, we can't help you retore your IMEI unless you made an IMEI backup before the issue started. You obviously didn't create an IMEI backup so we can't help you with restoring it.
Sent from my SM-S767VL using Tapatalk

Droidriven said:
Flash the stock firmware that you previously had on the device before you updated. It might restore your IMEI.
Other than that, as stated in the XDA forum rules, we can't help you retore your IMEI unless you made an IMEI backup before the issue started. You obviously didn't create an IMEI backup so we can't help you with restoring it.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Hey, thanks for replying.
The action I took was the update of the official firmware.
No, unfortunately I haven't backed up my IMEI partitions, not that even at this point - I know which partitions are these.
As I said, I have the number printed out on the box the device shipped in, therefore essentially I'm looking for help in restoring this partition.
I made several restores to the official firmware, new and old, but IMEI isn't being restored. Hoping there's an actual solution to this - we need this SIM for WhatsApp communication, keeping in touch with family at very restrictive times.

munky-head said:
Hey, thanks for replying.
The action I took was the update of the official firmware.
No, unfortunately I haven't backed up my IMEI partitions, not that even at this point - I know which partitions are these.
As I said, I have the number printed out on the box the device shipped in, therefore essentially I'm looking for help in restoring this partition.
I made several restores to the official firmware, new and old, but IMEI isn't being restored. Hoping there's an actual solution to this - we need this SIM for WhatsApp communication, keeping in touch with family at very restrictive times.
Click to expand...
Click to collapse
I understand your situation perfectly....
But...
That doesn't change anything about my reply.
As stated, the XDA rules only allow us to help with restoring from an IMEI backup. The reason for this is because anything that involves using a flashtool or other methods to rewrite your IMEI can be used, by others that might see it, for nefarious purposes, such as using the instructions that we might give as a means to change the IMEI on a stolen device or a blacklisted device in order to activate the device, which is illegal in a lot of places. Therefore, those kinds of discussions are not allowed here, regardless of your reason or your needs. This rule is in place to protect a potential user's privacy and device security.
Sorry, can't help you at all. Keep searching on your own in other places other than XDA.
Sent from my SM-S767VL using Tapatalk

Droidriven said:
I understand your situation perfectly....
But...
That doesn't change anything about my reply.
As stated, the XDA rules only allow us to help with restoring from an IMEI backup. The reason for this is because anything that involves using a flashtool or other methods to rewrite your IMEI can be used, by others that might see it, for nefarious purposes, such as using the instructions that we might give as a means to change the IMEI on a stolen device or a blacklisted device in order to activate the device, which is illegal in a lot of places. Therefore, those kinds of discussions are not allowed here. This rule is in place to protect a potential user's privacy and device security.
Sorry, can't help you at all. Keep searching on your own in other places other than XDA.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
I understand, obviously it's not the case here, but I wouldn't want to break any rules.
I haven't found a solution in days, before arriving here to ask. So, if someone sees it and has an idea, I would appreciate help, even with PMs.
The main purpose of utilizing a SIM card at all is whatsapp, it's not like we're going out in the near future.

Contacted Teclast's support, which explained that the IMEI partition was wiped, and the tablet has to be shipped back for a reflashing.
This is impossible as we're in quarantine, and we use the tablet daily. So... if there aren't any suggestions - guess we'll stay on WiFi, w/o WhatsApp.

https://androidmtk.com/download-mobileuncle-apk
It's in the GPRS settings.
Use the third (oldest) is best into
But as you said, it's on the box, so it's no biggie.
Set, reboot.

I am in TROUBLE! Help me for GOD, Redmi 6a!!!

Anyone left with some humanity is requested to PLEASE HELP ME if you have a Redmi 6a device or know a guy with redmi 6a device.
I actually bricked my device unintentionally and did found a way to get out using SP Flash Tool, However the thing I am stuck in right now is worse than bricking a phone.
Both SIM Cards are not working. I did a lot of research and found that I need two files:
[nvdata.img] [nvram.bin]
Unfortunately I don't have any backup for this. Now what I am looking for is some kind hearted person who can take a backup of their [nvdata] [nvram] partition and give it to me and I'll replace all their data like IMEI numbers etc with my own. I have my IMEI numbers ready to be feeded. I did a lot of try using those engineering ROMS and Tools. NOTHING WORKS!
I regret my decision of jumping in something I don't know about. I want you to please have pity on me so that I don't have to live without my phone.
==============CURRENTLY ON NEGHBOURS WIFI WHO CAN CHANGE PASSWORD ANYTHIME IF HE GETS TO KNOW THAT I HAVE HIS PASSWORD BEFORE HE DOES THIS PLEASE GET ME OUT OF THIS SO THAT I CAN USE MY OWN PHONE FOR INTERNET. I AM COMPLETELY DEPENDENT ON CELLULAR DATA!===============
====YA I AM THIS MUCH POOR!!!==== NO MONEY FOR A NEW PHONE====I AM NOT STEALING ANYONE'S IMEI====PLEASE HELP!=====PLEASE HELP FOR HUMANITY

Edit : root your phone, and then follow this page https://forum.hovatek.com/thread-25458.html it worked for me

Tab E said:
Edit : root your phone, and then follow this page https://forum.hovatek.com/thread-25458.html it worked for me
Click to expand...
Click to collapse
I tried it but it still shows imei unknown. What device is your fixed mobile phone? xiaomi or some other?

IMEI gets added to mobile device when it's built. It's stored in device's /EFS and/or /NVRAM partition. If you haven't backed up this partition before you flashed a new ROM then you have lost unless the IMEI is printed on the box in which device has been delivered.

jwoegerbauer said:
IMEI gets added to mobile device when it's built. It's stored in device's /EFS and/or /NVRAM partition. If you haven't backed up this partition before you flashed a new ROM then you have lost unless the IMEI is printed on the box in which device has been delivered.
Click to expand...
Click to collapse
I have both imei numbers on the phone's box, Thank God, but the problem is how to have them working in the phone

Look inside here:
(2023) How To Change IMEI Number of Android Phones (Latest)
Latest tricks to change the IMEI number of android phones easily without rooting your android phone. so change a serial number of your android device in 2023.
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