[Acer Iconia A500] dibb_nz:
When Things Go Bad....How to unbrick

Download Links to Unbrick your Tab

1. update.zip method using HC 3.1_Full_Update.zip

Notes on use:

- rename the zip to "update.zip" and flash either using cwm or "pwr/volume down"

- you can flash the v8 bootloader from HC 3.1 if you want to ---

- You can restore a nandroid backup or flash an HC rom from here too, first you need to rootby installing iconiaroot then flash a custom recovery using Acer Recovery Installer

- oh how easy it all was on HC 3.1

- es File Explorer download here

Use this update.zip for any of the following:

- You do not have your cpuid

- You are stuck on the "Acer" Logo

- Your tab boots past the Acer Logo but then boot loops at the boot animation

- You are on the old HC bootloader /ICS Rom combination

- You wish to return to factory stock, and OTA all the way to Stock ICS

You CANNOT use the update.zip method if:

- You are stuck in apx mode

- You have unsuccessfully nvflashed skrilax_cz unlocked bootloader or timmydeans root tool-tdv4

- You have boot verified failed error

(Please see the EUU/nvFlash Method below to repair these issues)

HC 3.1 FULL_update.zip

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2. nvFlash/apx/EUU method

you MUST use this if:

- the update.zip has not worked for you

- you do not have an external sd_card

- flashing the unlocked bootloader has failed

- your partitions are screwed up

timmydeans root tool -tdv4- will reset partitions, and downgrades you to a pre-rooted HC3.2.1 with cwm 1.7

To Downgrade using tdv4:

1. Do not connect your tab to your pc

2. Run the tool till you see the window telling you to put yr tab in apxmode

3. Put your tab in MANUAL apx mode using the button combo

4. Connect your tab to your pc now

5. Let the tool continue - you should see the big white PASS when its done!

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BABSECTOR.RAR

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babsector.rar download here - will reset partitions when tdv4 will not work for some reason

Official Acer a500 EUU 3.0.1 EUUs_SBK_Acer_A500_1.016.05_COM_GEN1.rar

3. Stuck with Black Screen and Power LED Light is on

This can happen "just like that" for no particular reason or after an OTA - if this is the case, its more than likely caused by a faulty memory chip on the motherboard - the ONLY fix for this is a replacement m/b from Acer..

Most likely though it happens by trying to flash a recovery or bootloader via Custom Recovery or a Rom Manager or Acer Recovery Installer - the first time bootloader flash must be done using nvFlash - OR if you've tried to flash BEFORE your tab has entered "Acer Download Mode" as displayed on your tabs screen

If you are using one of the auto flash tools and the tool seems to get somewhere - do not carry on -

1. use "safely remove hardware" icon in the PC system tray to eject the "APX Device"

1a. if there is no apx device listed here - then you need to install the drivers correctly then try the flash again...

2. next close the tool down and disconnect the usb cable

3. reboot both tab and PC

4. Once you;re back in windows connect your usb cable to your tab

5 Check the Acer-Picasso boot/recovery driver has installed

6. Proceed with the flash again