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[Tutorial] How to fix Unknown Baseband, NULL or Invalid IMEI & SIM / Network not detected on MTK


Guys having this BANDBASE issue with my LETV. I tried to connect o MAUI my LeTV 2 PRO (MT6797) but the MAUI can't seem to see the phone.

The same process works with Flash Tools. Why I can't connect the phone to MAUI? Can someone help? I can't use SIM on my phone. UNKNOWN problem with BASEBAND and IMEI.

Please help!!!


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(10-11-2016, 03:32 AM)Pangadaywalker Wrote: Guys having this BANDBASE issue with my LETV. I tried to connect o MAUI my LeTV 2 PRO (MT6797) but the MAUI can't seem to see the phone.

The same process works with Flash Tools. Why I can't connect the phone to MAUI? Can someone help? I can't use SIM on my phone. UNKNOWN problem with BASEBAND and IMEI.

Please help!!!

You need to fix unknown baseband first by flashing firmware before you consider fixing IMEI
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pls the link to imei zip.zip is not working…. tnx
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(10-14-2016, 11:51 AM)adiposus Wrote: pls the link to imei zip.zip is not working…. tnx

Works fine here
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(This post was last modified: 10-14-2016, 06:40 PM by Pangadaywalker. )
(10-11-2016, 10:30 AM)hovatek Wrote:
(10-11-2016, 03:32 AM)Pangadaywalker Wrote: Guys having this BANDBASE issue with my LETV. I tried to connect o MAUI my LeTV 2 PRO (MT6797) but the MAUI can't seem to see the phone.

The same process works with Flash Tools. Why I can't connect the phone to MAUI? Can someone help? I can't use SIM on my phone. UNKNOWN problem with BASEBAND and IMEI.

Please help!!!

You need to fix unknown baseband first by flashing firmware before you consider fixing IMEI
That is the problem. How to fix the unknown baseband? I have tried everything in the internet. 
The best possible solution would be MAUI META and it doesn't recognize my phone even though SP Flash Tool works just fine with the installed drivers.  Yesterday someone sent me the NVRAM.BIN but it am only getting errors when trying to flash using SP Flash Tools. 
Should I use the WRITE MEMORY instead of DOWNLOAD?

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(This post was last modified: 10-14-2016, 11:13 PM by X3non. )
(10-14-2016, 06:39 PM)Pangadaywalker Wrote: That is the problem. How to fix the unknown baseband? I have tried everything in the internet. 
The best possible solution would be MAUI META and it doesn't recognize my phone even though SP Flash Tool works just fine with the installed drivers.  Yesterday someone sent me the NVRAM.BIN but it am only getting errors when trying to flash using SP Flash Tools. 
Should I use the WRITE MEMORY instead of DOWNLOAD?

already replied @ https://forum.hovatek.com/thread-15427.html
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I am using DOWNLOAD. For the SPFT I get both errors:
[Image: 0?ui=2&ik=28009ef811&attid=0&th=157c5427...w1903-h974]

[Image: 0?ui=2&ik=28009ef811&attid=0&th=157c5422...w1903-h974]
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(10-14-2016, 11:15 PM)Pangadaywalker Wrote: I am using DOWNLOAD. For the SPFT I get both errors:
[Image: 0?ui=2&ik=28009ef811&attid=0&th=157c5427...w1903-h974]

[Image: 0?ui=2&ik=28009ef811&attid=0&th=157c5422...w1903-h974]

Create a new thread so we focus on it
see https://forum.hovatek.com/thread-514.html for how to create a thread
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(01-15-2016, 09:24 PM)johpWesh Wrote: For those Still finding it difficult to fix the Null IMEI or unknown Baseband issue with their phone can also try this out. i stumbled on it while making research on how i could fix my unknown baseband issue i once had.

STEPS
1.. install ES file explorer (you can also use root explorer)
2.. open ES file explorer
3.. on root explorer grant root permission
4.. click on root explorer
5.. click on mount as
6.. then mount as R/W
7.. then go to device
8.. then go to data
9.. find the folder named "NVRAM"
10.. delete the "NVRAM" folder
11.. now reboot.
NOTE: your device has to be rooted for you to be able to carry this out successfully.
holllaaahhh you have successfully fixed your unknown baseband.
first of all you need to backup the "NVRAM" folder in a safe place.

THANKS A MILLION. This just solved my baseband problem, all i had to do afterwards was to tweak the imei with mtk engineering tools.

THANKS AGAIN
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(This post was last modified: 01-23-2017, 10:47 AM by X3non. )
Thanks so much! I can retrieve data by myself. There are programs to do that. For example My Device Manager
I used it few times.it's free and it works as good as can be expected. The main thing is to stop using the external hard disk until you use this tool, and avoid writing any files to it.
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