[Kernel/Recovery][P75XX] A1 Kernel V1.9/TWRP2.6.3.0

Stuck After 1.3 on Samsung Screen?

  • No, and hope I never do.

    Votes: 179 82.9%
  • Yes, but I solved it by reflashing

    Votes: 8 3.7%
  • Yes, but I solved it by flashing V1.3 or older

    Votes: 8 3.7%
  • Yes, and had to reflash full stock

    Votes: 21 9.7%

  • Total voters
    216
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AAccount

Senior Member
Sep 8, 2010
1,005
1,909
I have already flashed 2.4.4.0 you have built but I can not mount /data and I see no way of initiating the decrpytion (and at no point I am asked for decryption password).
I think I have read somewhere, or it was in the #twrp irc channel, that the decryption support is not included in the build by default (anymore)... I will check again.

---------- Post added at 11:35 AM ---------- Previous post was at 11:08 AM ----------

I see in twrp source code that there are flags that have to be set (at this point I'm not sure which one exactly is appropriate for GT-P7500) for encryption to be included during the build process: TW_INCLUDE_CRYPTO and/or TW_INCLUDE_CRYPTO_SAMSUNG. Maybe you could take a look at sources in your build environment and check if the flags are set.

Just as a potentially useful information, here is the output from my (encrypted) tablet, from TeamWin's cryptsettings utility on stock ICS 4.0.4 with kernel v3.1.10:
Code:
TW_INCLUDE_CRYPTO := true
TW_CRYPTO_FS_TYPE := "ext4"
TW_CRYPTO_REAL_BLKDEV := "/dev/block/platform/sdhci-tegra.3/by-num/p8"
TW_CRYPTO_MNT_POINT := "/data"
TW_CRYPTO_FS_OPTIONS := "journal_async_commit,data=writeback,nodelalloc,errors=panic"
TW_CRYPTO_FS_FLAGS := "0x00000406"
TW_CRYPTO_KEY_LOC := "footer"


---------- Post added at 12:17 PM ---------- Previous post was at 11:35 AM ----------

Update: I have also checked the twrp recovery.log. There is no encryption support flag set during the initialization process.

Unfortunately, that adds about 883kb of libraries which just can't be crammed in. Just tried it. Sorry. The recovery for my I9300 with exfat, twrp splash screen, su injection, and encryption is about 7MB.

---------------------------------------------------------------------------Added------------------------------------------------------------
I'm looking into adding the ROW (read over write) disk i/o scheduler in.
 
Last edited:

jayceebee23

Senior Member
Sep 22, 2007
108
14
Here is a flashable zip from AAcounts Tab-MOD.

Tried this flashable on today's nightly (5/1) but it didn't work. Text labels got all mixed up starting from the optimizing apps dialog on reboot. Didn't try adb push of the original files posted by AA. Anyone has success on latest nightly?

[GT-P7510] Samsung Galaxy Tab 10.1 WiFi

[ROM][CM10.1 Nightly] Android v4.2.2
[Kernel] A1 v1.8.4 | OC 1.6GHz | GPU OC 400MHz
 

TRSHD

Senior Member
Mar 27, 2012
103
12
Montreal
Hello all,

So, here's my situation: I have a GT-P7500, ROM: CM 10.1 nightlies, CWM recovery BUTTTTTT, I had to use Odin to flash all of this...

So, if I want to replace CWM with TWRP and flash this marvellous kernel on top, is there ANYTHING special I need to consider???

Thanks for your support friends!!

*Ahem* Anyone!?!?!?
 

dante1987

Senior Member
Feb 5, 2011
62
3
so i installed this kernel....usb charging works great! Pretty fast! I still have problems with connecting my PS3 bluetooth controller

i use SIXAXIS Controller app....even with USB it doesn't recognize my PS3 controller. With BT JOYSTICK CENTER it does recognize my Wii-mote so i know bluetooth is working..

anybody tried it yet?
 

AAccount

Senior Member
Sep 8, 2010
1,005
1,909
It looks like someone else has beat me to it for a newer update to tabletui. That's ok. I usually build it Friday night or Saturday morning weekly. I'll assume that everyone's using that other posted one. Anyways, I added in the row scheduler as was requested to V1.8.7 of the kernel. I tried using the original source from an email listing from the original author but that caused a boot fail. I ended up going with cyanogenmod 10.1's version of the row scheduler specifically for the samsung smdk4412 soc. I just picked that one because I have an I9300 and that source is in my cm build folder.

If anyone wants my newer tabletui from an hour ago I'll put it up anyways. Also just wondering, how many people actually like the 2 bar UI of android 4.2?
 

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Last edited:

TRSHD

Senior Member
Mar 27, 2012
103
12
Montreal
Tried flashing TWRP via CWM recovery (pershoot's version btw); no go. The zip fails to flash. What do?

Thanks!

Sent from my GT-P7500 using xda app-developers app
 

TRSHD

Senior Member
Mar 27, 2012
103
12
Montreal

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piratz

Senior Member
Jun 17, 2011
76
20
Kuala Lumpur
MrPiratz.Com
i flash the rocovery.. but it create a new folder which is '0'

for you information, im using JellyBean ICS ROM... Are it not compatible with ICS rom...

What i means is it always read my recovery folder from sdcard/0
 

hanspampel

Senior Member
Dec 7, 2011
2,140
3,128
Thats normal. This partition is used by googles "multiuser". It is on all Android 4.2.X FWs. But you dont need it on ICS.
 

AAccount

Senior Member
Sep 8, 2010
1,005
1,909
Tried flashing TWRP via CWM recovery (pershoot's version btw); no go. The zip fails to flash. What do?

Thanks!

Sent from my GT-P7500 using xda app-developers app

Then try the dd method. I will put this method on the front page as it seems to be handy. Basically find recovery.img inside the zip file and put it in the root directory of the sd card. Then carry out these commands:

Code:
cd /sdcard
su
dd if=recovery.img of=/dev/block/mmcblk0p2

Reboot into recovery and enjoy the touch friendly TWRP.
 

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  • 187
    :good: First of all :good: Thank you for your patronage!!! :D:cowboy::laugh::victory:

    Before you do anything: This is purely at your own risk and I will not be responsible for anything that happens to your tablet. I flashed it on mine at my own risk.

    Compatibility Information: There are 2 different versions. 1 for stock and 1 for Cyanogenmod. Even though the kernels are intended for the 3G tablet it will work just fine on a WiFi only tablet (like mine). This makes the build process less messy.

    **Sources Fully documented v1.9 beginner friendly sources now available including the build script. If more explanations are required, please say so. However, remember that the explanations are not intended to be a blind step by step instructions of going from samsung source to A1.

    TWRP V2.6.0.0: Please read: do not worry about any kind of "E:A: Render Error". This is a side effect of removing some image files to save place on the recovery image so it will fit on the 5MB. The error simply means it failed to show (render) and image file that it is looking for. This is not harmful at all. If you can't flash the recovery please try the dd method.

    TWRP V2.6.3.0: There are no more E:A Render errors. All graphics that were removed are there. Also, the recovery will install supersu if no root is detected. That feature has also been restored. The kernel has been stripped of anything not recovery related to shrink it down. It also has selinux support which allows the "set_metadata" zip installation to work. The download is in the attachments below.

    Changelog:
    Changelog:
    • Voodoo sound <-- new to version 1.0
    • USB charging enabled as well as charging from other chargers *** fixed V1.5.4 thanks to pershoot
    • Overclock to 1.2GHz <-- new to version 1.2
    • NTFS modules enabled, ondemand default frequency scaler, noop default disk io scheduler <-- new to version 1.2.1
    • GPU overclock from 333MHz to 400MHz. <-- new to version 1.3
    • Overclock to 1.4GHz <--new to version 1.4
    • Support for Current Widget <-- new to version 1.5
    • CIFS enabled in kernel config, 1.4GHz attempted stability fix (thanks to jaswinky) <--new to version 1.5.2
    • Wifi driver compiled as module <--new to V1.5.3
    • More voltage anomalies fixed, updated battery driver to pershoot's 3.1 <-- new to V1.5.4 and V1.5.5XE
    • Fixed charging boot bug <--new to V1.5.6SE
    • (In case you were wondering 1.5.7 had an issue in it.)
    • Disabled frequency lock, added 1GHz default max (you can change it to 1.2GHz or 1.4GHz after boot), 216MHz default min CazeW's suggestion <--new to 1.5.8SE+XE
    • Enabled pershoot build/vfp optimization commit, added 150MHz minimum frequency <-- new to 1.5.9SE+XE
    • Boot script support (put yours as /data/local/a1init.sh) <-- new to V2.0
    • Smarter ram disk that only initializes 3G on 3G tablets<-- new to V2.1
    • 1.5GHz && 1.6GHz OC available, cifs utf8 kernel module available <-- new to V2.2
    • Support for CM9 <-- new to V2.2CM
    • Enabled xbox controller module as xpad.ko <--new to V2.2.1
    • NTFS moved to kernel module instead of built in, CIFS moved to kernel module instead of built in, enabled option.ko and usb_wwan.ko for connection of 3G dongle, all nls charsets/codepages built as modules <--new to V2.2.2
    • V1.6.3 is pretty much V2.2.2 but without my custom ram disk. I've also tried a boot script method proposed by Toldo but haven't had time to test it yet. Please flash the CM9 stock kernel or Samsung stock kernel before trying V1.6.3.
    • Applied git patch to disable mmc_cap_erase <-- new to V1.6.4
    • Voltage control, cifs built in again <-- new to V1.7
    • Galaxy Tab 8.9 specific fix <--new to V1.7.1
    • Cyanogenmod charging mode fix <--new to V1.7.2
    • Galaxy Tab 8.9 specific feature <--new to V1.7.3
    • CM10 compatibility fix, enabled Samsung's powersaving governor <--new to V1.7.4
    • followed pershoot's "-defconfig: jb: unset TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND" change to fix odd 450MHz capping issue <--new to V1.7.4b
    • Copied in pershoot's keyboard dock driver <--new to V1.7.5
    • 801MB RAM enabled <-- new to V1.8
    • Rebased on pershoot's November 17 source <--new to V1.8.1
    • Back to samsung base, follow pershoot's suggestion of Nexus7 mtp drivers to fix mtp, enabled zRam <--new to V1.8.2
    • Reduced RAM to 785MB to prevent intense 3D games issue, enabled KSM (check in settings --> performance --> memory management)
    • (CM Version only) works on CM10.1 <--new to V1.8.4
    • Incorporated touchscreen death fix. Thank the user who reported it. <-- new to V1.8.5
    • Used part of pershoot's kernel config to get data usage working in CM <--new to V1.8.6
    • Added CM's version of the ROW (read over write) disk IO scheduler for GT-I9300<-- new to V1.8.7
    • Added XDA's grzwolf's solution to the hsic wakeclock problem <--new to V1.8.8
    • Added frandom kernel module <-- new to V1.9
    Credits:
    Supercurio: voodoo sound
    Pershoot: voodoo port, usb charging, flashable zip, OC template, current widget setup
    XDA forum's CazeW: used your replace suggestions to patch up wm8994_voodoo.c and wm8994_voodoo.h so it will compile properly, and finding the missing link for 1.4GHz OC, and disabling frequency locks
    Task650: providing a nice, clean deodexed rom for me to try this on
    XDA forum's RaymanFx: OC instructions
    Me: GPU OC
    XDA forum's jaswinky for valuable hints and checking my work over.
    Xoom ICS kernel: for getting an approximate idea of voltages
    (If I missed any credits, please forgive me as this is my first attempt at any kind of development)
    XDA forum's motley for voltage control
    XDA forum's Unknownzd for mmc_cap_erase patch
    XDA's grzwolf for the hsic wakelock fix
    11
    Very Good News

    So it looks like CM10.2 is actually alive and in testing on my tablet. Big thank you to user epinter for helping me with the graphics issue. I will play with CM10.2 to see how it is. First 10 seconds impression: buttery smooth, wifi works, bluetooth works, sound works, A1 kernel with SELinux firing on all cylinders! Unfortunately it has the 2 bar UI... time to search for that post on how to make tabletui.

    Please donate to epinter for CM10.2. He gets the credit for making it work. I just did some minor tweaking to the fstab and audio flinger.

    Gotta go to bed. Just check out the screenshot zips to see it working. I have no time adjust the sizes for xda.

    THE ZIP IS THE SCREENSHOTS, NOT THE ROM. I will post the rom later this week after testing.
    10
    Honeycomb Tablet Mode Partial Fix

    Hey everyone,

    I managed to figure out how to get the classic honeycomb tablet mode to work in CM10.1 (mostly). You know, the one where you get 1 status bar for the soft buttons and tray. Simply move the jars to /system/framework and the apk to /system/app. Do this with any root explorer or the terminal.

    I tried to make a flashable zip, but I managed to screw the permissions in the process and accidentally pull the plug on my computer, corrupting its data partition. I did setup my Linux install to have a system (/) and data partition (/home) like android.

    The only down side is that you can't customize the power widget but, on the upside, the UI seems noticeably less laggy than the stock CM10.1 UI with the 2 bars. Why??? Who knows. I think this benefit more than justifies the small annoyance of unchangeable toggles.

    Here are the instructions I followed: http://xdaforums.com/showpost.php?p=28957307&postcount=1, http://xdaforums.com/showpost.php?p=36319776&postcount=974.

    Last gotcha, it's for wifi only since that's what I have and I don't really want to wait for my computer to compile a whole other rom for the 3G version. (Have mercy on the Core2 mobile).
    8
    Great to see someone else kernel developing, could be the start of something here... Lol, I wanna give this a try but I think It'll stop 3G working if I flash the 7510 kernel.

    Sent from my GT-N7000 using Tapatalk 2

    Care to try the 3G version I just uploaded? I don't own the 3G version but I followed the same idea for compiling the 3G kernel.
    7
    Please do not advertise your roms in my kernel thread. This thread is mainly for bug reports and feature requests. Thank you for your understanding. (I did not advertise my A1 in pershoot's kernel thread saying "hey you want some of these features on stock rom, try my kernel". ) I will fix V2.0 to use a 3G ramdisk so 3G tablets will be able to use boot scripts later today.