Replacing Jolla1 factory image with higher version
asked 2018-06-10 10:35:45 +0200
Hi, I just had to factory reset my Jolla 1 to get the newest update and I am currently installing all relevant Systemupdates since 1.0.0.5 to get to the actual 2.2.0.29.
What a nice flashback to pass Sailfish 1 on the way, but this is another topic.
My question is: Can we replace the original factory image with a higher version, maybe based on 1.1.7.28 - the final Sailfish 1 version with the original UI behavior - if I remember correctly, or higher?
Just like @coderus described in his Intex to Jolla C thread? https://together.jolla.com/question/148893/how-to-make-aqua-fish-to-think-its-jolla-c-not-modem/
Replacing original factory image with Jolla1 Ver. x.y.z factory image After doing these commands your changes will survive factory reset. Download *factory image for Jolla1* Unpack and copy to sdcard Boot in recovery mode, enter shell Execute: mount /dev/mmcblk1p1 /mnt dd if=/mnt/mmcblk0p21.raw of=/dev/mmcblk0p21 Wait until image will be copied to partition, no output will be produced. Operation is finished when the copying is complete. Back to recovery menu and perform factory reset.
Is this possible?
Just bumping out of interest... anybody with an idea?
Really interested in this, too! It took a looong time to reset Jolla 1.
chappi ( 2018-10-22 17:28:26 +0200 )editSmall tip, when using
ddon a flash media (SSD, SD card or a smartphone built-in's eMMC), add theconv=sparseoption, this will skip the empty (i.e.: consisting only of zeroes) regions of the source image when writing, instead or needlessly writing long strings of zeroes. The flash media will be happy for the smaller amount of writing, and you can still run afterwardsfstrimon the mounted partition to clear (but not over-write) unused blocks.Another missing tip : after the overwite, checks if the partition UUID (the one you can get e.g. with
blkid /dev/mmcblk0p28) matches the one infactory-@/etc/fstab.You don't even need to go the
ddroute in the specific case of Jolla 1 : the factory image is held in subvolumesfactory-@andfactory-@home. As long as you have a working BTRFS partition (or you freshly reformated one), you can simply overwrite (or rename) those subtrees out of a tar-ball. (But still check for UUID).The complicated stuff, is that the factory image contains the firmware that needs to be flashed by the recovery onto most android-style multiple partitions (onto all the numbers
/dev/mmcblk0p{1..27}), and Qualcomm own the copyrights on lots of those blob, so Jolla cannot leave those available on their website without violating a couple of laws.So the best bets are : - Try to beg Jolla devs if they can directly send you an image. (But might not work as the phone is out of warranty and Jolla currently might not have enough devs ressources to catter to such demands) - Try to find whom among us fellow users has the most recent factory image and get the image form them (I can't personally help, mine is still old).
Last note: after a while, when you sure you're happy with the results, remove all the various
DrYak ( 2018-10-23 14:33:01 +0200 )editbackup-* sub volumes you won't need anymore.Just bumping out of interest... anybody with an idea?
<<
reflash?
coderus ( 2019-10-13 22:56:42 +0200 )edit