4.0 ice cream sandwich - Chinese tablet does not boot

I have a Chinese Tablet that was working till last night. I did a factory reset and now it is stuck in small Android logo. I have tried all key combinations to enter into recovery with no success. Please help. Do let me know what information can I provide about the tablet.

System (Android 4.0.4)
Model- L26

Manufacturer - unknown
Device - crane-a088
Product - crane_a088
Brand softwinners
Android Version - 4.0.4 (Ice Cream Sandwich)
API Level - 15
Build ID - IMM76D
Fingerprint - softwinners/crane_a088/crane-a088:4.0.4/IMM76D/20120924:eng/test-keys
Display (800x432)


Processor (ARMv7)
Processor - ARMv7 Processor rev 2 (v7l)
Cores - 1
Max Frequency - 1200 Mhz
Instruction Sets - armeabi v7a, armeabi
SIMD Instructions - NEON

Memory (306 MB)
System RAM - 306 MB
JVM Max Memory - 48 MB


Internal Storage - 639 MB
External Storage - 935 MB

Back Camera - (1.9 megapixel)
Front Camera - (0.3 megapixel)

Sensors (2)
MMA 3-axis Accelerometer
Vendor - Freescale Semiconductor Inc.

Broncho 2-axis Orientation
Vendor - Topwise 3G Inc.

OpenGL 1.X (Mali-400 MP)
General
Renderer - Mali-400 MP
Version - OpenGL ES-CM 1.1
Vendor - ARM

OpenGL 2.0 (Mali-400 MP)

General
Renderer - Mali-400 MP
Version OpenGL ES 2.0
Vendor - ARM
GLSL Version - OpenGL ES GLSL ES 1.00

Features (20)
Graphics
OpenGL 2.0
Android Hardware

android.hardware.bluetooth
android.hardware.camera
android.hardware.camera.autofocus
android.hardware.faketouch
android.hardware.location
android.hardware.location.gps
android.hardware.location.network
android.hardware.microphone
android.hardware.nfc
android.hardware.screen.landscape

android.hardware.screen.portrait
android.hardware.sensor.accelerometer
android.hardware.touchscreen
android.hardware.touchscreen.multitouch
android.hardware.touchscreen.multitouch.distinct
android.hardware.usb.accessory
android.hardware.wifi

Android Software
android.software.live_wallpaper


Model number
L26
Android version
4.0.4
Baseband version
M1190_V1.0.3
Kernel version
3.0.8
lihongling@lihongling-desktop #30

Mon Sep 24 19.53.13 CST 2012
Build number
Ubuntu-L26-B-20121016

Answer

If it is stuck in bootloop, I suspect corruption in /system. You should either reinstall the stock ROM or install a custom one. The first thing you will need is a custom recovery. According to this post by flowish at XDA-Developers, you can do this by follwing these steps:

• Download the recovery (recommended latest build)


• extract and put to your /sdcard


• 
  
  

  open terminal applications (like better terminal emulator) ,or you can use from adb shell and type :

  
  

  $ su
  # cd /mnt/sdcard
  # sh install-recovery.sh
  # sh reboot-recovery.sh
  

Here is the button configuration of the recovery:

Power button : Select

Volume (+) : Up

Volume (-) : Down

After doing that, install a new ROM from the recovery. Here is a custom ROM (from a post by nizar07 at androidtablets.net) that you can install from recovery.