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Setting up Gmail on your NEW Mobile device's generic email client

  1. Enable IMAP/POPS on your gmail settings (via web based gmail)
  2. Create an App password at

Note: Using your regular google username/password will result in an error. You have to generate a new "app" password, and then login to google using this new "app" password.

Applies to any mobile devices, including iOS and Android

Custom ROM installation

Android 2.3 wifi devices crashes TP-Link N750 TL-WDR4300 router

  • $ mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
  • My two Android 2.3 tablets will trash the router whenever their wifi is turned on
  • Solution
    • Set router to work in just the 2.4G Range. Turn of the 5G range. DOES NOT WORK FOR ME. My tablet still crashes the 2.4G only router
  • Other people have reported this problem

Cheap phones

Cheap dual-core Tablets (699 RMB)

--Zhangguiyu (talk) 08:27, 17 July 2012 (UTC)

Gadmei t863-3d

I recently bought this cheap tablet for HK$795 at Golden Computer Center in Hong Kong Shumshuipo. Good price. But too bad mine is the older version that does not support 4.0. There is a newer version t863-3d v2.0 that supports 1G Ram and android 4.0.


  • 1280x768 nice screen
  • 5000 mAh battery
  • decent mali-400 chip
  • 1 GHz Cortex A9 CPU, 128KB RAM
  • 512 MB Ram
  • Wifi b/g/n
  • cheap


  • no bluetooth
  • no GPS
  • flimsy construction
  • HDMI seems to not work, my t863-3d seems to be a display model, so the cheap price


Upgrade firmware to Android 4.0

  • Instructions install NVIDIA Tegra driver on GADMEI T863-3D/E8 3D free glasses tablet for play all Nvidia Tegra HD games on this tablet , if this diver are not installed on Gadmei tablet any Tegra games not start or are in grey picture , so here i crack it and i show you how to install NVIDIA TEGRA drivers

Install Chainfire 3D: 1 - Download Chainfire 3D 1.7 unpack it then install. 2 - Download Plug-ins file, unpack it in SD. - Open chainfire3D then allow super user. - Select the CF3D Driver, and then Install. Tablet restarts. - Start the Chainfire3D and select the item Install plugin. - Wait till it found plug-ins .zip file - Install - After this, go to Default OpenGL settings -> Use plugin - Choose NVIDIA - Minimize Chainfire3D

That's all You need to make that only a single time , after that it louch any Tegra HD games with the Tegra Driver and all the Games Work in HD (high-definition)

Hope this guide i make will help you to appreciate much more your Gadmei 3D tablet !


Streaming Full HD-Video or 3-D video

Online Info

Bluetooth Keyboard

  • KEY update: if you are running SDK release 9 (Android 2.3.x), then the firmware does *not* support ESCAPE mapping (technically, the variable ESCAPE is undefined in release 9 SDK), so there is no easy way to get the escape key to work. For Android 2.3.x, the escape key is mapped to BACKSPACE by default. Upgrade your firmware if you wish to use the escape key.

If you have one of those rapoo e6500 bluetooth keyboard that maps 'ESC' key to the 'back' button, create the following file as root (after mounting system as rw) based on this blog:

# cat /proc/bus/input/devices
I: Bus=0005 Vendor=099a Product=0500 Version=011b
N: Name="Bluetooth Keyboard"
P: Phys=10:2E:AF:0E:AD:E0
S: Sysfs=/devices/virtual/bluetooth/hci0/hci0:1/input5
U: Uniq=6C:5D:63:48:00:63
H: Handlers=kbd event4 
B: EV=100013
B: KEY=10000 2000007 ff9f307a c9405fff febeffdf ffefffff ffffffff fffffffe
B: MSC=10

remount /system as read-write otherwise you won't be able to save your modifications.

mount -o remount,rw /system

Mappings for Rapoo E6500 BT keyboard

I added the following to support the Rapoo keys

# guiyu 2012.05.30 for rapoo e6500
key 1     ESCAPE
key 41    `
key 41    SHIFT ~
key 51    SHIFT <           
key 52    SHIFT >          
# weird >< key
#key 86
key 111   DEL
# windows logo key (not mapped, because windows key is useless under android)
# key 125
key 172   HOME WAKE


Lenovo Lephone W100 W-CDMA

Need to install MIUI prior to recovery, otherwise recovery partitions is not there


Older Links

  • 以后如果想刷机,开机时:
  • 卡里有固件的情况:
  • 电源键加上魔镜键卡刷(优先级最高)
  • 电源键加上音量加进入fastboot
  • 电源键加上加上音量减进入recovery
  • 卡里没有固件的情况:
  • 电源键加上魔镜或者音量加都进入fastboot
  • 电源键加上音量减进入recvoery

Hannspree s10t2

creating a bootable TF card for experimentation

  • Details about creating a 2nd stage bootloader [2]


another custom ROM (untested)

CM7.1 Android 2.3.7

TF Card based (tf0.1)
  • Boots from tf
    • if tf card is present, will boot OS from tf card
    • if tf card is removed, will boot OS from flash
flash based (flash0.8)
Solutions to problems

Recovery Image

Install Clockwork Mod (untested)

flash based installation

  1. adb push update.tar.bz2 /cache
  2. adb push updatewierdname.tar /cache/update.tar
  3. touch show.txt (this will make the update verboose)
  4. adb push show.txt /cache/
  5. reboot
  6. you will see a a series of right-triangles drawn in the middle of the screen from left to right (like a progress bar made up of triangles)

Useful (some site requires login)

HTC Hero

ZTE Blade V880