[GUIDE]Baseband Updating/Downgrading for Karbonn A5/A7,A7+ and Walton Primo

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GuneetAtwal

GuneetAtwal

Senior Member
Oct 6, 2012
2,421
5,327
27
Mohali
OnePlus 7T
Baseband Update Tutorial​

images

  • Download Tool
  • Stock ICS Baseband
  • A PC
  • Patience
  • Now can't force more...... :p
Click to expand...
Click to collapse


images
  • Install drivers
  • Open Download tool, set your handset into QPST Download mode (Power key+ Voice down key) and connect your phone with USB cable.
  • Click set path>Browse folder>Select 591379_8376_WCDMA_V000003(By Guneet) where you extracted it
  • Click Check Port
  • Take a deep breath and Click Download All
Click to expand...
Click to collapse
Congrats You have successfully updated your baseband​



Your splash.img will disappear and blank screen will come don't worry just flash Recovery again(See Downloads
--------------------------------------------------------------------------------------------------------------------------------------------------------
images

--------------------------------------------------------------------------------------------------------------------------------------------------------

Baseband

Download Tool

Updated CWM Recovery


credits.png

Himalayoee
Prasad
Arjun Rajput
Me:p​
 
Last edited:
  • Like
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GuneetAtwal

GuneetAtwal

Senior Member
Oct 6, 2012
2,421
5,327
27
Mohali
OnePlus 7T
How to donwgrade baseband!

so in this post i am going to explain how to downgrade baseband.Remember that the following steps are only for karbonn a5 and walton primo,spice mi355.

HOW TO DOWNGRADE BASEBAND​

rEQUIREMENTS
1.)stock baseband of our phone
DOWNLOAD HERE
2.)Rest every requiremwnts are same as for upgrading.(check post no.1)

pROCEDURE
1.)Unzip the baseband file in any folder.
2.)opent the FASTBOOT1.0.2.4
3.)connect your phone in QPST DOWNLOAD MODE.(power button+volume↓key).
4.)Rest all the steps you know as they are same for downgrading.(check the post no.1)


NOTE:you don't have to download the NPRG7627A.hex file which you did in upgrading.

What after downgrading??
just go HERE and flash this rom via CWN and ENJO(Y):laugh::laugh:

IF still having problems comehere and ask as many questions u wanna ask;)
ALL THE CREDITS TO arjun rajput and prasad12ka4 senior members of our thread for guiding:victory:
 
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H

harjinder767

Member
Dec 8, 2012
6
4
The Droid Master said:
so in this post i am going to explain how to downgrade baseband.Remember that the following steps are only for karbonn a5 and walton primo,spice mi355.

HOW TO DOWNGRADE BASEBAND​

rEQUIREMENTS
1.)stock baseband of our phone
DOWNLOAD HERE
2.)Rest every requiremwnts are same as for upgrading.(check post no.1)

pROCEDURE
1.)Unzip the baseband file in any folder.
2.)opent the FASTBOOT1.0.2.4
3.)connect your phone in QPST DOWNLOAD MODE.(power button+volume↓key).
4.)Rest all the steps you know as they are same for downgrading.(check the post no.1)


NOTE:you don't have to download the NPRG7627A.hex file which you did in upgrading.

What after downgrading??
just go HERE and flash this rom via CWN and ENJO(Y):laugh::laugh:

IF still having problems comehere and ask as many questions u wanna ask;)
ALL THE CREDITS TO arjun rajput and prasad12ka4 senior members of our thread for guiding:victory:
Click to expand...
Click to collapse

thanks very very much:laugh::laugh::victory::victory:
 
  • Like
Reactions: palani2103 and GuneetAtwal
ankit99

ankit99

Senior Member
Oct 29, 2012
225
260
25
helpppp

The Droid Master said:
so in this post i am going to explain how to downgrade baseband.Remember that the following steps are only for karbonn a5 and walton primo,spice mi355.

HOW TO DOWNGRADE BASEBAND​

rEQUIREMENTS
1.)stock baseband of our phone
DOWNLOAD HERE
2.)Rest every requiremwnts are same as for upgrading.(check post no.1)

pROCEDURE
1.)Unzip the baseband file in any folder.
2.)opent the FASTBOOT1.0.2.4
3.)connect your phone in QPST DOWNLOAD MODE.(power button+volume↓key).
4.)Rest all the steps you know as they are same for downgrading.(check the post no.1)


NOTE:you don't have to download the NPRG7627A.hex file which you did in upgrading.

What after downgrading??
just go HERE and flash this rom via CWN and ENJO(Y):laugh::laugh:

IF still having problems comehere and ask as many questions u wanna ask;)
ALL THE CREDITS TO arjun rajput and prasad12ka4 senior members of our thread for guiding:victory:
Click to expand...
Click to collapse

How to downgrade baseband in a7+??????????? i mean which is the factory baseband???? links plssssssss
 
A

Arushvds

Senior Member
Sep 24, 2012
71
4
The Droid Master said:
so in this post i am going to explain how to downgrade baseband.Remember that the following steps are only for karbonn a5 and walton primo,spice mi355.

HOW TO DOWNGRADE BASEBAND​

rEQUIREMENTS
1.)stock baseband of our phone
DOWNLOAD HERE
2.)Rest every requiremwnts are same as for upgrading.(check post no.1)

pROCEDURE
1.)Unzip the baseband file in any folder.
2.)opent the FASTBOOT1.0.2.4
3.)connect your phone in QPST DOWNLOAD MODE.(power button+volume↓key).
4.)Rest all the steps you know as they are same for downgrading.(check the post no.1)


NOTE:you don't have to download the NPRG7627A.hex file which you did in upgrading.

What after downgrading??
just go HERE and flash this rom via CWN and ENJO(Y):laugh::laugh:

IF still having problems comehere and ask as many questions u wanna ask;)
ALL THE CREDITS TO arjun rajput and prasad12ka4 senior members of our thread for guiding:victory:
Click to expand...
Click to collapse
Doesn't help...
I did everything correctly...
and when I click on download....It checks the NRP.....file and says go ok.
Then.....BP Download failed.....:( :( :(
 
A

Arushvds

Senior Member
Sep 24, 2012
71
4
The Droid Master said:
then you have downloaded the right file.Have you installed the right drivers.
Click to expand...
Click to collapse
And yeah the procedure was further done...
after the go ok...it starts downloading some files...
After that....A red screen with Ap (and some chinese language written) appears on the fastboot status screen.......
and then nothing happens..My phone boots with the normal way...
When I restore any backup, it says, MD5 mismatch...
and when I install any new ROM, it says download complete but nothing happens.....
 
Ins3ne33

Ins3ne33

Senior Member
Aug 4, 2010
81
68
Dhaka
Great Job !

Awesome ! Just Great Job .....

Hopefully these Chinese Phones are Kicking Ass Outta the other phones in the Range ! :laugh:
 
Last edited:
GuneetAtwal

GuneetAtwal

Senior Member
Oct 6, 2012
2,421
5,327
27
Mohali
OnePlus 7T
Arushvds said:
And yeah the procedure was further done...
after the go ok...it starts downloading some files...
After that....A red screen with Ap (and some chinese language written) appears on the fastboot status screen.......
and then nothing happens..My phone boots with the normal way...
When I restore any backup, it says, MD5 mismatch...
and when I install any new ROM, it says download complete but nothing happens.....
Click to expand...
Click to collapse

the chinese message will come its all normal you have not properly backed up the rom i think:rolleyes: so you should download the backup file provided in the group(fb).
 
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  • 29
    GuneetAtwal
    GuneetAtwal
    Baseband Update Tutorial​

    images

    • Download Tool
    • Stock ICS Baseband
    • A PC
    • Patience
    • Now can't force more...... :p
    Click to expand...
    Click to collapse


    images
    • Install drivers
    • Open Download tool, set your handset into QPST Download mode (Power key+ Voice down key) and connect your phone with USB cable.
    • Click set path>Browse folder>Select 591379_8376_WCDMA_V000003(By Guneet) where you extracted it
    • Click Check Port
    • Take a deep breath and Click Download All
    Click to expand...
    Click to collapse
    Congrats You have successfully updated your baseband​



    Your splash.img will disappear and blank screen will come don't worry just flash Recovery again(See Downloads
    --------------------------------------------------------------------------------------------------------------------------------------------------------
    images

    --------------------------------------------------------------------------------------------------------------------------------------------------------

    Baseband

    Download Tool

    Updated CWM Recovery


    credits.png

    Himalayoee
    Prasad
    Arjun Rajput
    Me:p    ​
    View
    4
    GuneetAtwal
    GuneetAtwal
    How to donwgrade baseband!

    so in this post i am going to explain how to downgrade baseband.Remember that the following steps are only for karbonn a5 and walton primo,spice mi355.

    HOW TO DOWNGRADE BASEBAND​

    rEQUIREMENTS
    1.)stock baseband of our phone
    DOWNLOAD HERE
    2.)Rest every requiremwnts are same as for upgrading.(check post no.1)

    pROCEDURE
    1.)Unzip the baseband file in any folder.
    2.)opent the FASTBOOT1.0.2.4
    3.)connect your phone in QPST DOWNLOAD MODE.(power button+volume↓key).
    4.)Rest all the steps you know as they are same for downgrading.(check the post no.1)


    NOTE:you don't have to download the NPRG7627A.hex file which you did in upgrading.

    What after downgrading??
    just go HERE and flash this rom via CWN and ENJO(Y):laugh::laugh:

    IF still having problems comehere and ask as many questions u wanna ask;)
    ALL THE CREDITS TO arjun rajput and prasad12ka4 senior members of our thread for guiding:victory:
    View
    3
    GuneetAtwal
    GuneetAtwal
    eastern_expr said:
    hi their ,i upgraded my a5 baseband to v5 now want to downgrade cause i could not find any bugless ics rom.i tried the procedure u mentioned but it not happening i tried v3047,v0001,v3025 but in vain but some one told me v3049 is the correct one for a5 can i the link pls
    Click to expand...
    Click to collapse

    bro dont download v3049 it reduces the battery backup just stick with v3025
    View
    2
    H
    harjinder767
    The Droid Master said:
    so in this post i am going to explain how to downgrade baseband.Remember that the following steps are only for karbonn a5 and walton primo,spice mi355.

    HOW TO DOWNGRADE BASEBAND​

    rEQUIREMENTS
    1.)stock baseband of our phone
    DOWNLOAD HERE
    2.)Rest every requiremwnts are same as for upgrading.(check post no.1)

    pROCEDURE
    1.)Unzip the baseband file in any folder.
    2.)opent the FASTBOOT1.0.2.4
    3.)connect your phone in QPST DOWNLOAD MODE.(power button+volume↓key).
    4.)Rest all the steps you know as they are same for downgrading.(check the post no.1)


    NOTE:you don't have to download the NPRG7627A.hex file which you did in upgrading.

    What after downgrading??
    just go HERE and flash this rom via CWN and ENJO(Y):laugh::laugh:

    IF still having problems comehere and ask as many questions u wanna ask;)
    ALL THE CREDITS TO arjun rajput and prasad12ka4 senior members of our thread for guiding:victory:
    Click to expand...
    Click to collapse

    thanks very very much:laugh::laugh::victory::victory:
    View
    1
    J
    jompha
    succed! thanks a lot!!!!
    View

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