First of all, thank you for reading my post and trying to help me.
My cell is a Samsung Galaxy Ace II x (GT-S7560M); I didn't found more appropriate place to post this thread. It is a new cellphone : I bought it 3 weeks ago.
I would like to "play" a bit with my phone (change the ROM, root it and everything. It is mainly because I want the Universal Storage Mode back on my cell). But if I do so, I would void the warranty. Since I will probably sell back this phone in few months, I may cause me some problem to explain people that there is no warranty anymore. So, I need to do a complete backup of the phone, including the part which is erased by ClockWorkMod recovery! (once this backup is done, I have found pretty much everything I need on Internet).
My question is - how do I do a backup of the boot partition knowing that:
- this cell doesn't work on mtd.
- the file /dev/block/bml5 (or /dev/bml5) doesn't exist (so what is said in this page http://forum.xda-developers.com/show....php?t=1335548 can't be applied)
- neither does the file /dev/emmc
Also, since I want to backup the ROM after all these operation, I didn't root my cellphone (It would have voided the warranty) and of course, didn't change my ROM.
For the sake of accuracy, there is the complete answer to the mtd:
shell@android:/ $ cat /proc/mtd dev: size erasesize name
I also looked into the partitions file:
shell@android:/ $ cat /proc/partitions major minor #blocks name 253 0 122880 zram0 179 0 3817472 mmcblk0 179 1 20 mmcblk0p1 179 2 150 mmcblk0p2 179 3 20480 mmcblk0p3 179 4 1 mmcblk0p4 179 5 1000 mmcblk0p5 179 6 1000 mmcblk0p6 179 7 2000 mmcblk0p7 179 8 12288 mmcblk0p8 179 9 3072 mmcblk0p9 179 10 3072 mmcblk0p10 179 11 8192 mmcblk0p11 179 12 12288 mmcblk0p12 179 13 4096 mmcblk0p13 179 14 4096 mmcblk0p14 179 15 512 mmcblk0p15 179 16 1228800 mmcblk0p16 179 17 512000 mmcblk0p17 179 18 2048 mmcblk0p18 179 19 12288 mmcblk0p19 179 20 24576 mmcblk0p20 179 21 4096 mmcblk0p21 179 22 51200 mmcblk0p22 179 23 1000 mmcblk0p23 179 24 4096 mmcblk0p24 179 25 1901176 mmcblk0p25
I think I have said pretty much anything I think is important.
Do you have any idea to help me? Or any questions?
By the way, I have seen there are some cellphones that have an embedded flag, that counts the number of time we flash the boot partition. I have not seen such information on this device, so there shouldn't have any, should it?
Thank you for your help and sorry if I miss anything that coulb be on the net/other post. I think I have done a quite wide range of them, but we are never sure we didn't miss anything.
Also, it is my first post on xda, so sorry if I miss any important rule of the forum, but you are welcome to let me know what they are.