Care to help me make TWRP backup/recovery work?

[TT_Vert]

As you know TWRP on our phones allows us to instantly switch between ROMs, backup, etc. instantly. It's like an image based backup for our android devices. And exceptionally handy when wanting to try out different ROMS (Firmware here I guess). I have TWRP recovery installed and I was able to get it to see my nandroid online TWRP backup. I had to run a backup in twrp to see the directory it wanted as It would not let me specify the directory. Turns out it is /mnt/external_sd/TWRP/BACKUPS/n70 for my device when choosing the external option. So I went ahead and confirmed the format of that backup is the same as the online nandroid TWRP backup and it is (mtd.win, ext4.win) so I went ahead and moved boot, cache, data, kernel, and system to that n70 directory. Beautiful TWRP recovery sees them! Making progress, I think. (See pic)

Then I go to restore this and I am met with "Unable to wipe data using function call". FAIL! Anyone have any idea what I may be able to do to make this work? I did check permissions of the TWRP backup directory to ensure all was well and it was. Perhaps TWRP doesn't have access to write to /data? I doubt that, perhaps this is an easy fix and TWRP can actually work well on these devices?

NOTE, you cannot backup from TWRP recovery as it shows /data as 0MB. Which may be part of the reason I get an error during TWRP restores?

Dave

 

[germinus]

Lets hope one of the dev's pick this up as this would be a great addition to help make life easier!

 

[TT_Vert]

I agree. I couldn't even decompile the recovery. I fail!!

Dave

 

[TT_Vert]

so nobody has any desire for this to work?

 

[webdude12]

I pushed for having a working TWRP when these units first came out. The issue is none of the ROM makers have had the desire to move to this type of system for releasing ROMs, so all updates to the ROM force you to flash back the factory recovery to update you ROM, which makes it a PIA anytime you want to update.

 

[TT_Vert]

fortunately the flash back to stock recovery is easy but twrp is so nice im surprised they aren't wanting to move to it. The backup/restore functionality is amazing as well.
Dave

 

[webdude12]

I would love for them to goto this style of updating as it would make upgrades so much easier as well as could use things like Aroma Installer to keep me from having to nuke half the apps I do not use with Titanium Backup. For example the only stock apps I use are Bluetooth and Radio. And most of the other crap found in the latest roms, I kill as well as I do not use them.

 

[eurominican]

I am so down for this! Would definitely donate to make it happen. Promise. Ask @Malaysk

 

[TT_Vert]

as would I.

 

[enes67]

I also like to pay with PayPal ready

 

[typos1]

As you know TWRP on our phones allows us to instantly switch between ROMs, backup, etc. instantly. It's like an image based backup for our android devices. And exceptionally handy when wanting to try out different ROMS (Firmware here I guess). I have TWRP recovery installed and I was able to get it to see my nandroid online TWRP backup. I had to run a backup in twrp to see the directory it wanted as It would not let me specify the directory. Turns out it is /mnt/external_sd/TWRP/BACKUPS/n70 for my device when choosing the external option. So I went ahead and confirmed the format of that backup is the same as the online nandroid TWRP backup and it is (mtd.win, ext4.win) so I went ahead and moved boot, cache, data, kernel, and system to that n70 directory. Beautiful TWRP recovery sees them! Making progress, I think. (See pic)

Then I go to restore this and I am met with "Unable to wipe data using function call". FAIL! Anyone have any idea what I may be able to do to make this work? I did check permissions of the TWRP backup directory to ensure all was well and it was. Perhaps TWRP doesn't have access to write to /data? I doubt that, perhaps this is an easy fix and TWRP can actually work well on these devices?

NOTE, you cannot backup from TWRP recovery as it shows /data as 0MB. Which may be part of the reason I get an error during TWRP restores?

Dave

AFAIK its already been done, a year or 2 ago.

If I remember correctly it was working but it wasnt compatible with the way the MTCB updates work or something, did you search the original thread ?

Whilst I use TWRP on my phone I never tried it on my head unit or saw the need for it personally.

 

[miffymiffy]

@Dees_Troy or @Captain_Throwback are the only guys I know capable of doing it. Maybe if they could give a hand. I have attached the 800x480 5.1 recovery if they would be so kind.

 

[typos1]

The wiki says its "now working perfectly" and gives a link to TWRP for Rockchip devices in a Freaktab post from 2014.

As I said earlier I m sure there was some reason why not many people use it, possibly to do with not being able to flash the MCU in TWRP or something.

Has anyone actually searched the original thread yet ? (theres only 11 pages to read through if you search "TWRP").

 

[miffymiffy]

The wiki says its "now working perfectly" and gives a link to TWRP for Rockchip devices in a Freaktab post from 2014.

As I said earlier I m sure there was some reason why not many people use it, possibly to do with not being able to flash the MCU in TWRP or something.

Has anyone actually searched the original thread yet ? (theres only 11 pages to read through if you search "TWRP").

Can you link me to the wiki? the only one i could find was the huifei one with no info re twrp
are you referring to http://freaktab.com/forum/main-category/freaktab-downloads/11780-twrp-2-7-0-0-for-rockchip-s
cos they are plagued with issues and use the kitkat base

 

[TT_Vert]

When I use it it backs up a 0MB apps daa folder each time. You could always very quickly swap back to stock recovery for flashing of ROM'/MCU. It never worked for me properly and I don't see any indication anyone actually backed up and restored w/ TWRP. I provided the screen shots of what error was generating while backing up somewhere. It certainly does not restore an online nandroid TWRP backup either.r.

Dave

 

[typos1]

When I use it it backs up a 0MB apps daa folder each time. You could always very quickly swap back to stock recovery for flashing of ROM'/MCU. It never worked for me properly and I don't see any indication anyone actually backed up and restored w/ TWRP. I provided the screen shots of what error was generating while backing up somewhere. It certainly does not restore an online nandroid TWRP backup either.r.

Dave

Can you link me to the wiki? the only one i could find was the huifei one with no info re twrp
are you referring to http://freaktab.com/forum/main-category/freaktab-downloads/11780-twrp-2-7-0-0-for-rockchip-s
cos they are plagued with issues and use the kitkat base

http://forum.xda-developers.com/wiki/Hui_Fei_Type (under "Recovery)

That looks like the page from Freaktab @miffymiffy

Have either of you read all the posts on TWRP in the original thread to get a handle on the TWRP situation for MTCB head units ?

 

[lysiong]

look like somebody also looking for TWRP on Joying HU. I'm also looking on it but seem to be not so much people interested on it. I dont mind that TWRP wont update the MCU but most important it can backup the whole rom & can restore back the rom exactly what it left previously.

does the below TWRP link work for RK3188 1024x600(seem like for RK3088 CPU)
http://huifei.fs-fileserver.de/content/firmware/KK 4.4.4 Dualcore Coudu Rooted /TWRP/1024x600/

 

[typos1]

look like somebody also looking for TWRP on Joying HU. I'm also looking on it but seem to be not so much people interested on it. I dont mind that TWRP wont update the MCU but most important it can backup the whole rom & can restore back the rom exactly what it left previously.

does the below TWRP link work for RK3188 1024x600(seem like for RK3088 CPU)
http://huifei.fs-fileserver.de/content/firmware/KK 4.4.4 Dualcore Coudu Rooted /TWRP/1024x600/

Dont know sorry, but TWRP will be the same for ALL MTCB and MTCC hedunits, plus there are no "Joying" headunits, Joying are sellers only, they sell Joyous and other MTCB, MTCC and MTCD headunits.

 

[lysiong]

look like somebody also looking for TWRP on Joying HU. I'm also looking on it but seem to be not so much people interested on it. I dont mind that TWRP wont update the MCU but most important it can backup the whole rom & can restore back the rom exactly what it left previously.

does the below TWRP link work for RK3188 1024x600(seem like for RK3088 CPU)
http://huifei.fs-fileserver.de/content/firmware/KK 4.4.4 Dualcore Coudu Rooted /TWRP/1024x600/

just try it, totally not working , blank screen come out when boot into recovery :crying:. Lucky still can restore back previous working recovery.