Amlogic Next7P12-8G Modified Recovery - Stock Rom & Flashable Root

[shaunmt]

Well, the reflash worked. Battery level is now functional. Thanks again! Can't wait to see some custom ROMS!

Glad it worked out for you!

The custom ROMs are coming, I just wish I had more time to spend on them lately.

ShaunMT

[rekenaar]

Good morning to everyone following this thread.

I was wondering if anyone with a 4gb model tried this stock rom and could confirm whether it works or not?

I have a working rooted next7p12-g 4gb.

Why do I want to know if the stock rom works if my tablet is currently working? Because I am very much interested in possible future custom roms, and this way we could start to identify compatible devices. If I find a way to nandroid, I will surely test and give feedback myself. In the mean time, I would surely appreciate feedback from other 4gb owners.

[shaunmt]

Good morning to everyone following this thread.

I was wondering if anyone with a 4gb model tried this stock rom and could confirm whether it works or not?

I have a working rooted next7p12-g 4gb.

Why do I want to know if the stock rom works if my tablet is currently working? Because I am very much interested in possible future custom roms, and this way we could start to identify compatible devices. If I find a way to nandroid, I will surely test and give feedback myself. In the mean time, I would surely appreciate feedback from other 4gb owners.

If you're already rooted, you could just do a system dump (Use dd to dump all the partitions, not romdump or onandroid), and upload them for me to work on. I haven't had an opportunity to compare the ROMs for the two models.

ShaunMT

[rekenaar]

If you're already rooted, you could just do a system dump (Use dd to dump all the partitions, not romdump or onandroid), and upload them for me to work on. I haven't had an opportunity to compare the ROMs for the two models.

ShaunMT

Sorry, I am very unfamiliar with dumps.
Did a bit of googling, but it seems the process of identifying the partition name differ.

If I do:

cat /proc/partitions

I get:

cat /proc/partitions
major minor  #blocks  name


   7        3       7308 loop3
   7        5      52007 loop5
   7        6      24980 loop6
  31        0      16384 mtdblock0
  31        1       8192 mtdblock1
  31        2       8192 mtdblock2
  31        3       8192 mtdblock3
  31        4       8192 mtdblock4
  31        5     524288 mtdblock5
  31        6     131072 mtdblock6
  31        7     524288 mtdblock7
  31        8    2957312 mtdblock8
 250       32    2592768 avnftl8
 250       33    2586433 avnftl8p1
 253        0   31166976 cardblksd
 253        1   31162880 cardblksd1
 254        2       7308 dm-2
 254        4      52006 dm-4
   7        8      49928 loop8
 254        7      49927 dm-7
   7        9       9387 loop9
 254        8       9387 dm-8
 254        5      24979 dm-5

So it seems my next steps should be:

[COLOR=#222225]su
[/COLOR][COLOR=#222225]dd if=[/COLOR][B][COLOR=Blue]/yourMountingPoint[/COLOR][/B][COLOR=#222225] of=[/COLOR][B][COLOR=Green]/yourDestination[/COLOR][COLOR=Red]/partitionType[/COLOR][/B]

But I am not sure what to use as /yourMountingPoint and /partitionType.

[shaunmt]

Sorry, I am very unfamiliar with dumps.
Did a bit of googling, but it seems the process of identifying the partition name differ.

If I do:

cat /proc/partitions

I get:

cat /proc/partitions
major minor  #blocks  name


   7        3       7308 loop3
   7        5      52007 loop5
   7        6      24980 loop6
  31        0      16384 mtdblock0
  31        1       8192 mtdblock1
  31        2       8192 mtdblock2
  31        3       8192 mtdblock3
  31        4       8192 mtdblock4
  31        5     524288 mtdblock5
  31        6     131072 mtdblock6
  31        7     524288 mtdblock7
  31        8    2957312 mtdblock8
 250       32    2592768 avnftl8
 250       33    2586433 avnftl8p1
 253        0   31166976 cardblksd
 253        1   31162880 cardblksd1
 254        2       7308 dm-2
 254        4      52006 dm-4
   7        8      49928 loop8
 254        7      49927 dm-7
   7        9       9387 loop9
 254        8       9387 dm-8
 254        5      24979 dm-5

So it seems my next steps should be:

[COLOR=#222225]su
[/COLOR][COLOR=#222225]dd if=[/COLOR][B][COLOR=Blue]/yourMountingPoint[/COLOR][/B][COLOR=#222225] of=[/COLOR][B][COLOR=Green]/yourDestination[/COLOR][COLOR=Red]/partitionType[/COLOR][/B]

But I am not sure what to use as /yourMountingPoint and /partitionType.

Do

cat proc/mtd

You should get output something like this:

dev:     size     erasesize     name
mtd0: 00800000 00200000 "bootloader"
mtd1: 00800000 00200000 "logo"
mtd2: 00800000 00200000 "aml_logo"
mtd3: 00800000 00200000 "recovery"
mtd4: 00800000 00200000 "boot"
mtd5: 20000000 00200000 "system"
mtd6: 00800000 00200000 "cache"
mtd7: 40000000 00200000 "userdata"
mtd8: 18c00000 00200000 "NFTL_Part"

You need bootloader, logo, aml_logo, recovery, boot, and system for a full ROM.

Cache is user settings. Userdata is downloaded apps. These are usually wiped and not restored with a ROM. Could be useful for backups though.

Don't mess with NFTL_Part!

Output file names should be as follows:

"bootloader" = bootloader.img
"logo" = logo.img
"aml_logo" = aml_logo.img
"recovery" = recovery.img
"boot" = boot.img
"system" = system
"userdata" =userdata

So your command lines for dumping should be in this format:

dd if=/dev/mtd/mtd# of=/sdcard/external_sdcard/ouputfilename

Check your mtd#'s on your device using cat proc/mtd and fill in the mtd#'s and output file #'s and enter the dd commands one line at a time.

If your cat proc/mtd output matches my device, then your lines would be:

dd if=/dev/mtd/mtd0 of=/sdcard/external_sdcard/bootloader.img
dd if=/dev/mtd/mtd1 of=/sdcard/external_sdcard/logo.img
dd if=/dev/mtd/mtd2 of=/sdcard/external_sdcard/aml_logo.img
dd if=/dev/mtd/mtd3 of=/sdcard/external_sdcard/recovery.img
dd if=/dev/mtd/mtd4 of=/sdcard/external_sdcard/boot.img
dd if=/dev/mtd/mtd5 of=/sdcard/external_sdcard/system[COLOR=Red]
[/COLOR]

When done, copy the files and folders you dumped off your external sd card, zip them all up together in a single zip file, upload them and let me know where I can download them.

ShaunMT

[rekenaar]

Do

cat proc/mtd

You should get output something like this:

dev:     size     erasesize     name
mtd0: 00800000 00200000 "bootloader"
mtd1: 00800000 00200000 "logo"
mtd2: 00800000 00200000 "aml_logo"
mtd3: 00800000 00200000 "recovery"
mtd4: 00800000 00200000 "boot"
mtd5: 20000000 00200000 "system"
mtd6: 00800000 00200000 "cache"
mtd7: 40000000 00200000 "userdata"
mtd8: 18c00000 00200000 "NFTL_Part"

You need bootloader, logo, aml_logo, recovery, boot, and system for a full ROM.

Cache is user settings. Userdata is downloaded apps. These are usually wiped and not restored with a ROM. Could be useful for backups though.

Don't mess with NFTL_Part!

Output file names should be as follows:

"bootloader" = bootloader.img
"logo" = logo.img
"aml_logo" = aml_logo.img
"recovery" = recovery.img
"boot" = boot.img
"system" = system
"userdata" =userdata

So your command lines for dumping should be in this format:

dd if=/dev/mtd/mtd# of=/sdcard/external_sdcard/ouputfilename

Check your mtd#'s on your device using cat proc/mtd and fill in the mtd#'s and output file #'s and enter the dd commands one line at a time.

If your cat proc/mtd output matches my device, then your lines would be:

dd if=/dev/mtd/mtd0 of=/sdcard/external_sdcard/bootloader.img
dd if=/dev/mtd/mtd1 of=/sdcard/external_sdcard/logo.img
dd if=/dev/mtd/mtd2 of=/sdcard/external_sdcard/aml_logo.img
dd if=/dev/mtd/mtd3 of=/sdcard/external_sdcard/recovery.img
dd if=/dev/mtd/mtd4 of=/sdcard/external_sdcard/boot.img
dd if=/dev/mtd/mtd5 of=/sdcard/external_sdcard/system[COLOR=Red]
[/COLOR]

When done, copy the files and folders you dumped off your external sd card, zip them all up together in a single zip file, upload them and let me know where I can download them.

ShaunMT

great, I got all 6. By the way, yes, my output from cat proc/mtd matches yours, except for the two size columns.

Will upload soon and notify you via PM of the location.
Just one more noob question. Can you confirm that none of my private info and account info will be in those six dumps? I would guess it would be in userdata, but I just need 100% confirmation please.

[shaunmt]

Re: Amlogic Next7P12-8G Modified Recovery - Stock Rom & Flashable Root

Any personal data would be in cache or user data.

Sent from my SPH-L710 using Tapatalk 4

[Balmung83]

Hello
My next7p12 4g
Serial YF0413...
won't boot in recovery-mode. What should i do?

[shaunmt]

Hello
My next7p12 4g
Serial YF0413...
won't boot in recovery-mode. What should i do?

Does your tablet boot normally into Android? Are you running the original ROM or a ROM that you flashed? If you flashed a ROM, what ROM are you using? Are trying to boot to stock recovery or a modified recovery? If a modified recovery, which one? Are you booting recovery from internal flash or external SD card?

And... perhaps most important... what were you attempting to do before this condition occurred?

ShaunMT

[Balmung83]

Does your tablet boot normally into Android? Are you running the original ROM or a ROM that you flashed? If you flashed a ROM, what ROM are you using? Are trying to boot to stock recovery or a modified recovery? If a modified recovery, which one? Are you booting recovery from internal flash or external SD card?

And... perhaps most important... what were you attempting to do before this condition occurred?

ShaunMT

It does boot normally.
I'm running the original ROM.
External, internal
I've tried to root my device with the Impactor-method on windows before, but the Next7P12 was not recognised by Minimal ADB/Fastboot and Impactor.

[shaunmt]

It does boot normally.
I'm running the original ROM.
External, internal
I've tried to root my device with the Impactor-method on windows before, but the Next7P12 was not recognised by Minimal ADB/Fastboot and Impactor.

I don't know how the Cydia Impactor tool works, but it sounds like it may have damaged your recovery partition. Not to worry though, these tablets can also boot recovery from an external SD card. Do you have an external SD Card?

I only recently received a copy of the ROM for your model. I'll try to post a modified recovery that you can place on your SD card and a stock ROM that you can flash to fix your internal recovery by this weekend.

ShaunMT

[Balmung83]

... Do you have an external SD Card?
...

Yes: 1GB, 2, 4 and 8GB.

...
I only recently received a copy of the ROM for your model. I'll try to post a modified recovery that you can place on your SD card and a stock ROM that you can flash to fix your internal recovery by this weekend.

Thank you very much. Your efforts are very much appreciated.

[christian404]

Android version

I'm really glad I found this thread. Just a question, for what the Android version is this? I'm using Android 4.1.1, my serial is yf1212 series and my item # is next7d12r. Will this rom work for me? BTW, mine is manufactured Dec 2012


thanks,
christian

[shaunmt]

I'm really glad I found this thread. Just a question, for what the Android version is this? I'm using Android 4.1.1, my serial is yf1212 series and my item # is next7d12r. Will this rom work for me? BTW, mine is manufactured Dec 2012


thanks,
christian

This is also android 4.1.1, and it is probably not compatible with your model. It is just a plain stock ROM anyway, no new features.

ShaunMT

[christian404]

This is also android 4.1.1, and it is probably not compatible with your model. It is just a plain stock ROM anyway, no new features.

ShaunMT

How about the flashable root will it work in my model?
thanks for the fast reply.