help, bricked U4K in 10 minutes!

[dessa]

Well, ws adjusting speed in Kernel Tuner, was surprised in went to 1.4G.
Did not even click apply it just hanged.
Next reboot, blue light for 30s, then turn red. No HDMI out.
Next reboot is the same...
PhoenixSuit doesn't see it and putting update.img on SD doesn't help either.

Ideas? where are "reset" pins?

[dessa]

Well, after manual copy of driver from android sdk and reboot, OS and PhoenixSuit suit started to see device, still no boot. So I've tried to flash
A31_sun6i_android_mars-b4k_4.2_20131127_gc2035.img ( b4k ok for u4k?)
It went through without error. However after reboot blue lights stays on for 30 seconds and unit turns off.
No activity on HDMI. I'm guessing boot fails.
Now even OS or PhoenixSuit doesn't see device again :-(

Well, I've tried to put a31s_sun6i_android_mars_ov5460_2-1312-3_.img on flash use PhoenixDisk 3.09.
But it doesn't look like U4K boots from it.
I've tried 2,8 and 16GB SD cards using either Production or Startup modes with the same zero results.
I suspect PD 309 creates images wrong, when I open SD it is empty, unless it is in different format.

[ADD]

Here is the solution to your problem. I also mentioned somewhere that U4K is not crossflashable with B4K.

Good luck

[d33]

help, bricked U4K in 10 minutes!

Arrrgghhh - someone with an unflashed U4k yesterday that we could have got the original ROM from. Now gone.

If there is anyone reading this with an original U4K I'd love to get you to dump the stock ROM for us. Please reply


Using my ipad so apols for any stupid ios spelling 'corrections'

[vidiman]

Fastest Brick Ever

Well, ws adjusting speed in Kernel Tuner, was surprised in went to 1.4G.
Did not even click apply it just hanged.
Next reboot, blue light for 30s, then turn red. No HDMI out.
Next reboot is the same...
PhoenixSuit doesn't see it and putting update.img on SD doesn't help either.

Ideas? where are "reset" pins?

10 minutes, I think that might be a new record?!

[ADD]

Arrrgghhh - someone with an unflashed U4k yesterday that we could have got the original ROM from. Now gone.

If there is anyone reading this with an original U4K I'd love to get you to dump the stock ROM for us. Please reply


Using my ipad so apols for any stupid ios spelling 'corrections'

Your efforts are so much appreciated. How about creating a new thread to find someone with the stock fw?

[dessa]

Cool thanks! One step further, shorting the pins let the light stay on, I'm guessing its not booting from ROM,
however it's not booting from SD either, just stays blue forever.
Using a31s_sun6i_android_mars_ov5460_2-1312-3_.img f/w
Trying different cards with PhCard 309. Is there way to check if flash is correct in Win or Linux?

Here is the solution to your problem. I also mentioned somewhere that U4K is not crossflashable with B4K.

Good luck

[dessa]

What's the best way to backup? I'm getting another one of Friday. Can try to do it.

Arrrgghhh - someone with an unflashed U4k yesterday that we could have got the original ROM from. Now gone.

If there is anyone reading this with an original U4K I'd love to get you to dump the stock ROM for us. Please reply


Using my ipad so apols for any stupid ios spelling 'corrections'

[dessa]

Yahoo, 8GB card did the trick, from second reflash!
Back in biz, no Wifi though.
Any other image other then a31s_sun6i_android_mars_ov5460_2-1312-3_.img could work?

Cool thanks! One step further, shorting the pins let the light stay on, I'm guessing its not booting from ROM,
however it's not booting from SD either, just stays blue forever.
Using a31s_sun6i_android_mars_ov5460_2-1312-3_.img f/w
Trying different cards with PhCard 309. Is there way to check if flash is correct in Win or Linux?

[ADD]

try this one

read the thread for changelog though

That would be great if you could help us with the unflashed device. Let me or d33 know when you get your second unit.

[d33]

help, bricked U4K in 10 minutes!

What's the best way to backup? I'm getting another one of Friday. Can try to do it.

Worst case would be to get root and then execute a series of "cat"s for each partition from terminal emulator. I'll create a script.

There is also supposed to be a ROMDUMP apk which would be perfect but I've yet to look for it properly.


Sent from my iPhone using Tapatalk

[ADD]

Worst case would be to get root and then execute a series of "cat"s for each partition from terminal emulator. I'll create a script.

There is also supposed to be a ROMDUMP apk which would be perfect but I've yet to look for it properly.


Sent from my iPhone using Tapatalk

The device comes prerooted. So, only the terminal to install.

[dessa]

Got the device. will install terminal. never dumped ROM before, please advice.

The device comes prerooted. So, only the terminal to install.

[dessa]

Adb to device works... so no need for terminal.

Got the device. will install terminal. never dumped ROM before, please advice.

[dessa]

root@android:/ # cat /proc/partitions
cat /proc/partitions
major minor #blocks name


93 0 16384 nanda
93 8 16384 nandb
93 16 16384 nandc
93 24 786432 nandd
93 32 2097152 nande
93 40 16384 nandf
93 48 32768 nandg
93 56 524288 nandh
93 64 131072 nandi
93 72 4079616 nandj
179 0 15663104 mmcblk0
179 1 15663103 mmcblk0p1

Last 2 entries - SD card ready for backup...

root@android:/ # ls /dev/block -la
ls /dev/block -la
brw-rw-rw- root root 7, 0 1970-01-02 08:00 loop0
brw-rw-rw- root root 7, 1 1970-01-02 08:00 loop1
brw-rw-rw- root root 7, 2 1970-01-02 08:00 loop2
brw-rw-rw- root root 7, 3 1970-01-02 08:00 loop3
brw-rw-rw- root root 7, 4 1970-01-02 08:00 loop4
brw-rw-rw- root root 7, 5 1970-01-02 08:00 loop5
brw-rw-rw- root root 7, 6 1970-01-02 08:00 loop6
brw-rw-rw- root root 7, 7 1970-01-02 08:00 loop7
brw-rw-rw- root root 179, 0 1970-01-02 08:00 mmcblk0
brw-rw-rw- root root 179, 1 1970-01-02 08:00 mmcblk0p1
brw-rw-rw- root root 93, 0 1970-01-02 08:00 nanda
brw-rw-rw- root root 93, 8 1970-01-02 08:00 nandb
brw-rw-rw- root root 93, 16 1970-01-02 08:00 nandc
brw-rw-rw- root root 93, 24 1970-01-02 08:00 nandd
brw-rw-rw- root root 93, 32 1970-01-02 08:00 nande
brw-rw-rw- system system 93, 40 1970-01-02 08:00 nandf
brw-rw-rw- root root 93, 48 1970-01-02 08:00 nandg
brw-rw-rw- root root 93, 56 1970-01-02 08:00 nandh
brw-rw-rw- root root 93, 64 1970-01-02 08:00 nandi
brw-rw-rw- root root 93, 72 1970-01-02 08:00 nandj
drwxr-xr-x root root 1970-01-02 08:00 platform
drwx------ root root 1970-01-02 08:00 vold

df
Filesystem Size Used Free Blksize
/dev 829M 32K 829M 4096
/mnt/asec 829M 0K 829M 4096
/mnt/obb 829M 0K 829M 4096
/system 756M 449M 307M 4096
/data 1G 172M 1G 4096
/cache 504M 8M 495M 4096
/mnt/extsd 14G 1M 14G 8192
/mnt/sdcard 3G 76K 3G 4096
/mnt/secure/asec 3G 76K 3G 4096



I assume I should just dd like this for each nand*
dd if=/dev/block/nandj of=/mnt/extsd/nandj
?

Adb to device works... so no need for terminal.