Hovatek Forum MOBILE Android [Please help] Hard Bricked B3-A20 Acer Tablet No Recovery
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[Please help] Hard Bricked B3-A20 Acer Tablet No Recovery

[Please help] Hard Bricked B3-A20 Acer Tablet No Recovery

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hovatek
hovatek
hovatek
Administrator
49,570
09-11-2017, 09:49 AM
#41



(08-11-2017, 05:40 PM)TLKiller I tried but I always get error 1004, I also tried compatibility mode, also this working device has a hardware problem on the USB so it is very hard to connect it properly.
But I even got the recovery of the B3-A20 device, I just need to flash it with a tool like TWRP official app, I think that might work, but the problem is that I was not able to root this B3-A30 rom, do you know a way to root it? I tried king root, kingo root, frama root, dr phone (trial) and other root methods I don't remember, I even tried with my computer with usb debugging and oem unlock too, but all this failed to root, any Idea? Oh and the fastboot mode works fine, that might help? By the way many thanks you all for your help, we haven't completely fixed it yet, but at least you found a way to make my device boot, I hope we fix it.

1. Upload a full screenshot of the sp flash tool error.
2. Have you tried Kingroot PC version?
3. As for the TWRP, you have two options for flashing it
1. Fastboot
2. Sp Flash tool

maybe you should try the B3-A30 TWRP if you can find it
This post was last modified: 09-11-2017, 09:50 AM by hovatek.

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TLKiller
TLKiller
TLKiller
Junior Member
28
09-11-2017, 05:29 PM
#42
(09-11-2017, 09:49 AM)hovatek
(08-11-2017, 05:40 PM)TLKiller I tried but I always get error 1004, I also tried compatibility mode, also this working device has a hardware problem on the USB so it is very hard to connect it properly.
But I even got the recovery of the B3-A20 device, I just need to flash it with a tool like TWRP official app, I think that might work, but the problem is that I was not able to root this B3-A30 rom, do you know a way to root it? I tried king root, kingo root, frama root, dr phone (trial) and other root methods I don't remember, I even tried with my computer with usb debugging and oem unlock too, but all this failed to root, any Idea? Oh and the fastboot mode works fine, that might help? By the way many thanks you all for your help, we haven't completely fixed it yet, but at least you found a way to make my device boot, I hope we fix it.

1. Upload a full screenshot of the sp flash tool error.
2. Have you tried Kingroot PC version?
3. As for the TWRP, you have two options for flashing it
1. Fastboot
2. Sp Flash tool

maybe you should try the B3-A30 TWRP if you can find it
1.I'm no longer able to connect my working device to pc because of a hardware problem in the micro USB, and that tablet guarantee is expired so looks like we won't take it to repair until USB gets completely destroyed or unable to charge.
2.Yes I also tried kingroot and kingoroot pc, and also SRS one click root, but all failed, after a few hours of internet research and forums, I only found one case of successful root but the guy who did it was a jerk and didn't want to share his knowledge.
3.I didn't found a TWRP for b3 a20 neither for a30, but on XDA I found a post of someone who said TWRP for BQ Aquaris M10 would work on B3 A20, but I flashed it via fastboot and nothing changed, so I tried SP flash tool and the tool said flash was ok, but I still having the b3 a30 recovery! So I was wondering if I could build myself a TWRP with this B3-A30 scatter, would that be easy for a noob?
X3non
X3non
X3non
Recognized Contributor
22,062
09-11-2017, 06:06 PM
#43
(09-11-2017, 05:29 PM)TLKiller ...
3.I didn't found a TWRP for b3 a20 neither for a30, but on XDA I found a post of someone who said TWRP for BQ Aquaris M10 would work on B3 A20, but I flashed it via fastboot and nothing changed, so I tried SP flash tool and the tool said flash was ok, but I still having the b3 a30 recovery! So I was wondering if I could build myself a TWRP with this B3-A30 scatter, would that be easy for a noob?

hold on,
try flashing the TWRP for BQ Aquaris M10 three times in quick succession without powering on the device then boot straight into recovery mode
TLKiller
TLKiller
TLKiller
Junior Member
28
09-11-2017, 07:51 PM
#44
(09-11-2017, 06:06 PM)X3non
(09-11-2017, 05:29 PM)TLKiller ...
3.I didn't found a TWRP for b3 a20 neither for a30, but on XDA I found a post of someone who said TWRP for BQ Aquaris M10 would work on B3 A20, but I flashed it via fastboot and nothing changed, so I tried SP flash tool and the tool said flash was ok, but I still having the b3 a30 recovery! So I was wondering if I could build myself a TWRP with this B3-A30 scatter, would that be easy for a noob?

hold on,
try flashing the TWRP for BQ Aquaris M10 three times in quick succession without powering on the device then boot straight into recovery mode

Wow I got a windows BSOD when flashing with SP flash tool Big Grin , fortunately I had saved my premiere project. Well after that I flashed the recovery 3 times but the tablet stills having the A30 recovery Confused can't understand why, because if I overwrited the recovery....
hovatek
hovatek
hovatek
Administrator
49,570
10-11-2017, 11:00 AM
#45



(09-11-2017, 07:51 PM)TLKiller Wow I got a windows BSOD when flashing with SP flash tool Big Grin , fortunately I had saved my premiere project. Well after that I flashed the recovery 3 times but the tablet stills having the A30 recovery Confused can't understand why, because if I overwrited the recovery....

zip and upload both stock recovery and the TWRP

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TLKiller
TLKiller
TLKiller
Junior Member
28
10-11-2017, 03:50 PM
#46
(10-11-2017, 11:00 AM)hovatek
(09-11-2017, 07:51 PM)TLKiller Wow I got a windows BSOD when flashing with SP flash tool Big Grin , fortunately I had saved my premiere project. Well after that I flashed the recovery 3 times but the tablet stills having the A30 recovery Confused can't understand why, because if I overwrited the recovery....

zip and upload both stock recovery and the TWRP

I couldn't attach it here so I uploded it to drive: https://drive.google.com/open?id=1oTltKD...XwDyRkTx4_
This post was last modified: 10-11-2017, 03:51 PM by TLKiller.
hovatek
hovatek
hovatek
Administrator
49,570
11-11-2017, 09:16 AM
#47
(10-11-2017, 03:50 PM)TLKiller I couldn't attach it here so I uploded it to drive: https://drive.google.com/open?id=1oTltKD...XwDyRkTx4_

The problem is from the TWRP. Try a different one
Try https://mega.nz/#!NfRmhAqY!G0oKRnL1vPOpA...xUaYA2Pf-Y
This post was last modified: 11-11-2017, 09:30 AM by hovatek.

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hovatek
hovatek
hovatek
Administrator
49,570
11-11-2017, 09:31 AM
#48
Try the above recovery

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TLKiller
TLKiller
TLKiller
Junior Member
28
11-11-2017, 10:14 AM
#49
(11-11-2017, 09:16 AM)hovatek
(10-11-2017, 03:50 PM)TLKiller I couldn't attach it here so I uploded it to drive: https://drive.google.com/open?id=1oTltKD...XwDyRkTx4_

The problem is from the TWRP. Try a different one
Try https://mega.nz/#!NfRmhAqY!G0oKRnL1vPOpA...xUaYA2Pf-Y
I flashed with fastboot, it said OK but I still having the A30 recovery, so I tried with SP flash tool and it says file must be signed, see screenshot, how can I disable the signed verification or whatever it's called?
Attached Files
.png
Capture.PNG
Size: 127.51 KB / Downloads: 9
X3non
X3non
X3non
Recognized Contributor
22,062
11-11-2017, 09:00 PM
#50



(11-11-2017, 10:14 AM)TLKiller I flashed with fastboot, it said OK but I still having the A30 recovery, so I tried with SP flash tool and it says file must be signed, see screenshot, how can I disable the signed verification or whatever it's called?

retry flashing using SPft -v5.1532.00 or v5.1516 @ https://www.hovatek.com/forum/thread-13970.html
lets know the outcome
This post was last modified: 11-11-2017, 09:01 PM by X3non.
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