Rooting Android HSG X5A Tablet

Steps
A) Install Eclair android USB driver in PC
1) Power on Android Table and wait till boot finish
2) Make sure X5A has USB debugging mode enabled
3) Connect Androdi tablet to PC via USB
4) Install X5A USB Eclair driver, when prompt for driver
5) In PC tray, you should see ANdroid composite ADB Interface
6) Reboot PC

B) In PC , enter ADB mode
1) Run > cmd> adb

My first 7" Android Tablet

7" size just fit into pocket.

The soul of the tablet : 4G NAND flash memory, 64Mx2 = 128M ram ~horrible!

LCD cable

Unsolder are for addition 4G nand.

1800mA 2cell 7.6V lipo

WiFi antenna on the right top.

Model : HSG X5A

Spec: Telechip 8902, 4G nand, 256M ram

Firmware: 2.1 update

Repair Canon EF lens Err99

The cable is now secure with tape to avoid future pulling and fracturing.

The iris mount has the cable exit area "rounded" to remove the right angle on the lip.

Site of fracture as from the small impression on it. The pinhole is puncture to confirm location of fracture.

My Canon EF lens showed this well known Err99 while I was on my long trip to Europe. That was desperate as the problem worsen progressively. Eventually, the camera stops working whenever the lens is zoomed and is fired.

There are lots of reason for Err99, including ring contact, jammed shutter, jammed iris (aperture)....

After returned to my home country, the lens was disassembled. The iris was tested and they seems to have no mechanism binding. The iris works intermittently. Bingo, that should be the broken cable. The cable is visually normal ....hey..except where it exit from the iris mount..there is a impression caused by pulling the cable against the iris housing. Cannon is stupid to allow this happen as the impression cause the thin copper to fracture. Mine counts only around 4,800 shots in 4 years.

Since I got no replacement cable on hand. I decided to confirm the fracture and solder it myself.

Hairpin connectded ohm-meter confirmed the fracture. After careful sanding and solder, the lens now works flawlessly.

Repairing Euron-320 HDTV VCR Power supply.

The replace blown capacitors with dots on it.

Euron HDTV VCR broken down after 1.5 year usage. All instrument light does not lit up. Some ticking noise on power up. Likely somehow of short circuit. On opening up the case. 3 capacitors will blown. With the tanned marking on the circuit board, likely due to overheat , caused by poor design (as the HD still spins and the heat can be felt from the ventilation slot on standby mode).

After changing the capacitors, the circuit board can still not power up. The small tickling noise can still be heard. Likely the short circuit has not yet found out. On removeing the power supply to the harddisk. Bingo! the unit can now be powered up normally.

With ohnmeter checking, the Zener diode (Someone said not zener, ..I forgot ) guarding the voltage input is burnt as well, causing a short circuit. The diode is removed and the unit works nicely...at least for antoehr 4 months.

Now the harddisk list everthing in it. Um....I forgot to check the ventilation fan.. a small , low power fan rated 0.16A and 5V ~1W. I was so stupid that I miss the non-spinning fan. I replaced th fan and it still does not spin and I suspect the old fan is stuck by dust and burnt the supplying transistor as well (some sort of temp. driven fan).

Eventually, I replace with another old 320G harddisk and plug a 3.3V computer fan (for video card) instead.

Hope it works for another 2 years...