Mini radio rom - How to downgrade?

[hchan852]

Does anyone know how to downgrade the radio rom from 1.05 back to 1.01? we need to know this in case the mini needs to be returned for repair, thanks...

Or do you know how to backup the radio rom of mini? thanks for your help

[Pc78]

Does anyone know how to downgrade the radio rom from 1.05 back to 1.01? we need to know this in case the mini needs to be returned for repair, thanks...

Or do you know how to backup the radio rom of mini? thanks for your help

You can just do like for the upgrade...extract the update files in to a folder, then delet the other to files...leave just the radio.nfb (or sth like it...don`t know the exact name :oops: ) and run the update...thats it.

Regards,
Primoz

[hchan852]

Hi PC78,

Thanks for your reply, however I don't understand...... here are the files that I have (from the 1.05 update package):

EnterBL.exe
GetDeviceData.exe
MaUpgradeUt.exe
radio_.nbf
RUU.conf
RUU.dll

which files I need to delete or keep? please advise

[jykk]

Hi PC78,

Thanks for your reply, however I don't understand...... here are the files that I have (from the 1.05 update package):

EnterBL.exe
GetDeviceData.exe
MaUpgradeUt.exe
radio_.nbf
RUU.conf
RUU.dll

which files I need to delete or keep? please advise

No. just download a file "MaUpgradeUt_noID.exe" from this site to the directory where above files are and run it. If flash radio rom to your mini

[Pc78]

Hi PC78,

Thanks for your reply, however I don't understand...... here are the files that I have (from the 1.05 update package):

EnterBL.exe
GetDeviceData.exe
MaUpgradeUt.exe
radio_.nbf
RUU.conf
RUU.dll

which files I need to delete or keep? please advise

This files are just for radio upgrade!...as U can see there is only the radio_.nbf file...the other two files are missing and it`s OK for just radio update. U can do as jykk said...extract the ROM 1.01 version and delet other two nbf files and than put the file "MaUpgradeUt_noID.exe" and run it. That`s it!

Regards,
Primoz

p.s. I have just deleted the other two files and it worked for me without the "MaUpgradeUt_noID.exe". :roll:

[hchan852]

I think now the problem is how I can get the 1.01 radio_.nbf ......... are you give me some ideas on how to extract the rom to three nbf files?

[Pc78]

I think now the problem is how I can get the 1.01 radio_.nbf ......... are you give me some ideas on how to extract the rom to three nbf files?

You can get the rom from the xda-ftp...look for shipped roms and find the oldest version. When U get it just click once on the file...and with the right click on the mouse chose to extract the rom in a directory of your choice. The first version of the rom is 1.03...When U have extracted the rom contents just delete the other two nbf files...and procede with upgrade as I described above.

Regards,
Primoz