Thread: Absolutely Positively No Downgrade?
View Single Post
rainisto is offline rainisto
2016-12-06 , 19:21
Posts: 1,067 | Thanked: 2,383 times | Joined on Jan 2012 @ Finland
#12
Originally Posted by Aktariel View Post
Hello,

Finally bought a Nokia N9 from a refurbishing place in China. Not my first choice, but it was the only affordable option. It's running PR1.3 with the 003 region code, and I'd really like to get it back to a fresh state without all the China social network stuff, and *with* the Europe/US services.


I've done a fair bit of reading, and I can find no mention of downgrading except strict statements that say it can't be done. From my understanding, I can go up to 009, but not down to 001. 009 appears to be "Europe (2)", but I am wondering, before I take the plunge:

1) if there's any difference between 001 and 009
2) if there's any chance at all to "downgrade" to 001 (stupid software decision, anyway - makes it seem like some countries are better than others)
3) where to get PR1.3 009 firmware, since even after scouring threads and using the most updated repos I can find (https://silma.tk/soft/ or https://markom.lt/n9/firmwares/) there's no 009 firmwares


alternatively, are there ways to take the firmware version I have and remove the pieces that I don't want?
or, is there a different region I should look at upgrading to? (006 seems to be the highest region I can find firmware for, which is Middle East iirc, and I don't know what effect that will have on anything except Maps/Drive).

Thank you!
1) if you have 003 version (china) you cannot flash even 009 version on top if it as chinese cmt cannot be upgraded nor downgraded to any other region than 003. If you have phone that is any other than 003, for example 001 or 005 then you could flash 009. Only thing that you can do is gain all capa access, and manually edit sw and services to match european version.

2) downgrade is only possible if you have working closed mode phone and know how to edit your own phones certificate in a special way (and no you should _not_ use other phones cert like one thread in this forum offers as that can brick your phone if hardware version does not match.) And even then you cannot downgrade CMT, so once chinese version has been flashed then its set forever.

3) you have 003, so 009 is no luck, you can only reflash 003.
 

The Following 5 Users Say Thank You to rainisto For This Useful Post: