Hey guys! Please, help me with my problem. I have Chuwi V10 tablet, and once day I'd installed Ampe A10 quad core firmware on it. And now, I can't enter to firmware update mode (Vol+ -> plugin usb cable -> press power many times) and can't update firmware through Phoenix Suite. I read that it is possible to create bootable sd-card for allwinner a10 devices. So, that's my question: how can I make this bootabe sd for allwinner a31?
Thx for help guys. But this methods doesn't work :-( Except sd card tool. This is my last chance...
О©╫О©╫О©╫О©╫О©╫О©╫О©╫, 23 О©╫О©╫О©╫О©╫О©╫О©╫ 2013О©╫О©╫., 14:17:36 UTC+4 О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫О©╫:
Hey guys! Please, help me with my problem. I have Chuwi V10 tablet, and once day I'd installed Ampe A10 quad core firmware on it. And now, I can't enter to firmware update mode (Vol+ -> plugin usb cable -> press power many times) and can't update firmware through Phoenix Suite. I read that it is possible to create bootable sd-card for allwinner a10 devices. So, that's my question: how can I make this bootabe sd for allwinner a31?
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О©╫
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-- Neal Peacock PengPod
I have seen tablets before with a 'fel boot' button instead of a reset button. I'm guessing that when you reflashed with a different devices firmware the key codes for the hardware buttons changed leaving you unable to enter fel boot mode with the new firmware. I have seen these codes change between two shipments of the same tablet with the same control board.
On 04/23/2013 10:43 AM, Андрей Зворыгин wrote:
Thx for help guys. But this methods doesn't work :-( Except sd card tool. This is my last chance...
вторник, 23 апреля 2013 г., 14:17:36 UTC+4 пользователь Андрей Зворыгин написал:
Hey guys! Please, help me with my problem. I have Chuwi V10 tablet, and once day I'd installed Ampe A10 quad core firmware on it. And now, I can't enter to firmware update mode (Vol+ -> plugin usb cable -> press power many times) and can't update firmware through Phoenix Suite. I read that it is possible to create bootable sd-card for allwinner a10 devices. So, that's my question: how can I make this bootabe sd for allwinner a31?
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-- Neal Peacock PengPod
Neal Peacock, can you tell me, where this key codes setting are located? After wrong firmware update I tried to restore my old partitions with dd (from nanda to nandi). But key layout has not changed...
2013/4/23 Neal Peacock <kuliman...@gmail.com>
I have seen tablets before with a 'fel boot' button instead of a reset button.О©╫ I'm guessing that when you reflashed with a different devices firmware the key codes for the hardware buttons changed leaving you unable to enter fel boot mode with the new firmware.О©╫ I have seen these codes change between two shipments of the same tablet with the same control board.
On 04/23/2013 10:43 AM, О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫ wrote:
Thx for help guys. But this methods doesn't work :-( Except sd card tool. This is my last chance...
О©╫О©╫О©╫О©╫О©╫О©╫О©╫, 23 О©╫О©╫О©╫О©╫О©╫О©╫ 2013О©╫О©╫., 14:17:36 UTC+4 О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫О©╫:
Hey guys! Please, help me with my problem. I have Chuwi V10 tablet, and once day I'd installed Ampe A10 quad core firmware on it. And now, I can't enter to firmware update mode (Vol+ -> plugin usb cable -> press power many times) and can't update firmware through Phoenix Suite. I read that it is possible to create bootable sd-card for allwinner a10 devices. So, that's my question: how can I make this bootabe sd for allwinner a31?
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О©╫
О©╫
-- Neal Peacock PengPod
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О©╫
О©╫
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On 24-04-13 07:42, О©╫О©╫О©╫О©╫О©╫О©╫ О©╫О©╫О©╫О©╫О©╫О©╫О©╫О©╫ wrote:
FEL mode (by keypress) is either initiated by the BROM or by boot0. Even if it is done by boot1, those 3 files are located:Neal Peacock, can you tell me, where this key codes setting are located? After wrong firmware update I tried to restore my old partitions with dd (from nanda to nandi). But key layout has not changed...
BROM = INSIDE the chip. You cannot ever change it. BROM first tries to boot from mmc0, then from nand. If those fail (and some other options, see the wiki) it forcefully boots to FEL mode.
boot0 and boot1 are both stored BEFORE /dev/block/nanda. Normal users can't really access it. You could a dd if=/dev/zero of=/dev/block/nand (so whipe the Entire nand device) and boot0/1 would still survive as it is on a special area before the 'disk'. You'd have to flash a livesuit image to mess boot0 and boot1 up, and even that's assuming they somehow obtained a special version from Allwinner with keys swapped which is EXTEMLY unlikly.
And one more thing. Allwinner has released the kernel sources for its A31 http://bit.ly/11DGp9i. With A31 u-boot sources I can create bootable sd, right?
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-- Neal Peacock PengPod
On Thursday, April 25, 2013 6:56:04 AM UTC+2, Андрей Зворыгин wrote:
> One more thing, I tried to flash correct image with PhoenixSuit 1.0.6 with turnedon tablet. After I pressed "Update" button, tablet reboots and detects as vid_1f3a&pid_efe8. But after that I received error "PnpFelIn".
> So, if I understand correctly, I can't repair my tablet without intervention to hardware or destroying boot image? :-(
Have you tried the fel-boot.c method as suggested by Oliver? If so, what were your results?
Also, make sure that you have the correct image for your device, preferably from the manufacturer (though that is no guarantee!).
Of course. Finally I updated firmware to ver. 2.0.
Great news! :)
Did you get the tablet flashed in the end?
> OMG! That works! Works! I filled /dev/block/nanda with zeroes and tablet was boot in fel mode. Thank you!