Teclast T30 T1P2 Root

kosrica

Senior Member
Jan 4, 2015
81
7
0
I have noticed the same thing, the page scrolling is quite slow compared to other phones/tablets.
However there is another more annoying thing that is driving me crazy i.e. the pull down notification bar activates randomly without any touches or user interaction.
Please see the video below:
https://photos.app.goo.gl/8iG6KUrqDTnvBfUU6

Do you experience this issue? It might be a hardware or a software problem?
 

PandaKiller

Senior Member
Sep 21, 2008
401
64
58
Lisboa / Leiria
I don't have ghost touchs, but I believe the touch quality is not good. I have enable the touch coordinates in development mode, and I realize that the touch step is 4 pixels. That's why the scroll feels strange.
Another anointing thing is the sensitivity. I bought a Tempered glass and I had to remove it because I couldn't write a message using a keyboard, without losing some touches.
I hope that a firmware update may fix this issues.
 

francykr8

Member
Dec 6, 2010
6
0
21
I have the same problem....low touch sensivity, the tablet it's arrived with tempered glass and I was thinking to remove, because it's hard to write and you lost some touches, is it possible to write to teclast? Because tablet it's good but this need an update of the software
 

PandaKiller

Senior Member
Sep 21, 2008
401
64
58
Lisboa / Leiria

rosztrade

Senior Member
Mar 16, 2013
56
2
0
Just wonder can I use my quick charge 3 charger to charge this tablet ? In other words does more voltage than 5v will burn this tablet ?
 

Yuji Saeki

Member
Dec 5, 2011
49
1
0
I have a Teclast T30 T1P4, yes T1P4. Developer Options->OEM Unlock, fastboot flashing unlock, used SCREEN TO CONFIRM, unlocked now. Going to need a TWRP but I've not delved into compiling TWRP.

Teclast T30 T1P4:
(Up to date as of 1/21/2019, v1.01_20190906). I did make the mistake of flashing the wrong recovery img. So if anyone can tell me how to grab latest full firmware, would appreciate that. X_x; Currently flashed it with the recovery from a T1P2 firmware in hopes that if something does go wrong, maybe the T1P2 recovery img will maybe not crash and burn.

Trying to find a way to backup the current boot.img and then Magisk-patch it. Thought for ****s and giggles to try a T1P2 boot.img (boot-only) and it simply rebooted. (MTK Droid Tools just does not work for me, despite drivers, etc. SP Flash Tool needs a Scatter File I do not have.)
 
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Yuji Saeki

Member
Dec 5, 2011
49
1
0
Teclast T30 T1P4:
(Up to date as of 1/21/2019, v1.01_20190906).

Managed to get root and Magisk on my T1P4.

Enabled Developer Options
Enabled OEM Unlock
Rebooted into Fastboot
Issued 'fastboot flashing unlock'
Followed instructions on Tablet Screen to Confirm Unlock
Used firmware from T1P2's Scatter File with SP Flash Tool to dump ROM except for recovery, mine is herpderped.
Copied boot.img (backup from SP Flash Tool) to internal storage of Tablet.
Made Magisk patch boot.img, kept encryption and verity.
Backed up magisk_patched.img.
Rebooted into Fastboot.
Issued 'fastboot erase boot' followed by 'fastboot flash boot ./magisk_patched.img'.

Success. :) (Noting that ctsProfile:true and basicIntegrity: true)

I verified boot.img was correctly identified before doing all of this, manual observation and a lot of Linux years (but newish to Android). I wouldn't trust the Scatter File from T1P2 until independently verified by someone other than myself. Couldn't get MTKDT to work at all on Linux.
Will manually patch my boot to get rid of Orange State.
 
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Yuji Saeki

Member
Dec 5, 2011
49
1
0
I've also manually patched lk and flashed to my lk and lk2 to rid it of Orange State. If I could figure out how to extract the kernel from lk I'd just bypass the 5s delay altogether.
 

Yuji Saeki

Member
Dec 5, 2011
49
1
0
Forcibly removed Adups FOTA spyware including Adups FOTA Overlay. Backed up before. Part of it gets restored by vendor.img, but not enough to be harmful.

Does ANYONE have recovery.img from T1P4? Trying to port TWRP..
 
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Yuji Saeki

Member
Dec 5, 2011
49
1
0
When I got my T1P4 it rebooted a few seconds after turning off the screen. Eventually got $25 rebate for it.
Then I flashed a magisk patched T1P2 boot.img and installed busybox, and now it works 100% without rebooting.
Do you have a backup of your recovery.img? If so, I can start work on porting TWRP. Desperately need it. (Riru, soft-brick.) Also, you could have used Magisk to patch your current boot.img and copied to sdcard, then flashed that instead.

---

For those who have patched a few things, remember to also patch lk.img (lk, lk2) to report Green state instead of Orange by patching androidboot.verifiedbootstate=orange to androidboot.verifiedbootstate=green (replace 'e' with nullbyte.) That way if Magisk takes a crap on you and you need to run stock boot.img, you'll hopefully continue to get ctsProfile: true, basicIntegrity: true.

---

Anyone else spot this? Tap 5 times:
Code:
Settings:System->Advanced:About tablet:Device info:Cpu type
 
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Yuji Saeki

Member
Dec 5, 2011
49
1
0
Managed to build a MagiskInit64 CORE-ONLY and patched boot.img. (That way if your Magisk is boot-looping you because of a bad mod, you can boot with root and all modules disabled.) If interested, ask and I'll find a filehost. T1P4-only.
 
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kosrica

Senior Member
Jan 4, 2015
81
7
0
Any custom firmware available for this tablet? Or someone has a set of clear steps with download links to reinstall the original firmware from teclast?
My unit has ghost touches on the display and maybe an installation from scratch will fix it, worth to try it at least...

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