T8SG v2 plus stuck

Tang10
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01 Oct 2018 22:15 #71130 by Tang10

Replied by Tang10 on topic T8SG v2 plus stuck

I'm in the same boat with my radio......its in RAW format. I have tried everything I can think of. Tried Linux fdisk and even bought a format utility, but o luck.

Jamie

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vlad_vy
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02 Oct 2018 04:56 - 02 Oct 2018 05:07 #71136 by vlad_vy

Replied by vlad_vy on topic T8SG v2 plus stuck

It looks like flash memory chip can't be writed. It can be faulty flash memory chip or chip connection issue. I think T8SG has the same connections as Devo F4 (F7):

With Devo F4 it can be (pin connections from SST25VF032B to STM32F103RBT6):
1. CE = SPI1_CE (PB2, pin 28)
2. SO = SPI1_MISO (PA6, pin 22)
3. WP = 3.3V (VDD_4, pin 19)
4. VSS = GND (VSS_4, pin 18)
5. SI = SPI1_MOSI (PA7, pin 23)
6. SCK = SPI1_SCK (PA5, pin 21)
7. HOLD = 3.3V (VDD_4, pin 19)
8. VDD = 3.3V (VDD_4, pin 19)

Check flash memory chip soldering and traces. It's 8-pin chip to the left from MCU. Check connection for pin 1 (chip select) and 3 (write protect, has to be connected to pins 7 and 8, =3.3V).

Last edit: 02 Oct 2018 05:07 by vlad_vy.

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zulmohd
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02 Oct 2018 05:25 #71138 by zulmohd

Replied by zulmohd on topic T8SG v2 plus stuck

Thanks again vlad_vy,

I am going to the distributor later, see if they can do anything for me 1st (They'd better). If can't, then I will open up and check the continuity between the pins.

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Tang10
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02 Oct 2018 16:22 #71149 by Tang10

Replied by Tang10 on topic T8SG v2 plus stuck

If the flash chip is damaged, can I just buy a new chip and solder it in?

Seems like a easy solution

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aMax
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02 Oct 2018 18:03 - 02 Oct 2018 18:07 #71151 by aMax

Replied by aMax on topic T8SG v2 plus stuck

I doubt that this is the solution for all.
On my 7e the whole 2MB backup( Walkera firmware) could be writen in DFU mode and be saved thereafter to compare.
But no formating after the Deviation firmware flash until the file system part was revised.
Since then the transmitter works as usual like the four
years before that mishap

But try......

Edit : Any feedback will take my attention.
..

Devo7e, TaranisQ X7, R9M , 4in1 MM, Futaba FC18plusV3.2 & DFT/FLD-02

Last edit: 02 Oct 2018 18:07 by aMax. Reason: edit

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Tang10
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02 Oct 2018 21:26 #71153 by Tang10

Replied by Tang10 on topic T8SG v2 plus stuck

Well boys and girls, I have success. Can't 100% say what my fix was, but applied a little heat to the flash chip with the solder iron and a small amount of solder for good measure. Then used Windows Disk Management tool to delete the volume and then formatted the flash in Disk Management.

Mine is now alive after 2 plus weeks of being dead!

Jamie

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zulmohd
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02 Oct 2018 21:43 #71154 by zulmohd

Replied by zulmohd on topic T8SG v2 plus stuck

Thanks for sharing the update Tang10. Will take note of this useful step together with those we have tried from this very helpful community.

For my case, i got a 1 to 1 replacement from the distributor. Hopefully can fly........thanks again everyone

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vlad_vy
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03 Oct 2018 04:04 #71157 by vlad_vy

Replied by vlad_vy on topic T8SG v2 plus stuck

Electronics is the science of contacts...

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aMax
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03 Oct 2018 09:32 #71158 by aMax

Replied by aMax on topic T8SG v2 plus stuck

Congrats.

Devo7e, TaranisQ X7, R9M , 4in1 MM, Futaba FC18plusV3.2 & DFT/FLD-02

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Tang10
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05 Oct 2018 12:42 #71185 by Tang10

Replied by Tang10 on topic T8SG v2 plus stuck

My problem now seems after loading the nightly build and file system on the screen seems fine, but after a few seconds/minutes the characters on the screen go unreadable.

Any thoughts?

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Ultracon
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01 Nov 2018 19:30 #71522 by Ultracon

Replied by Ultracon on topic T8SG v2 plus stuck

A lot of the time your drive will have hidden items. If you click to show hidden items it should pop up.

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BIllyU
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09 Mar 2019 20:55 #73291 by BIllyU

Replied by BIllyU on topic T8SG v2 plus stuck

Similar problem with IrangeX IR8m, but the build with bulk flash memory erase didn't fix it. The disk is not recognized by PC. Thanks

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Cricket
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27 Apr 2019 19:19 #74155 by Cricket

Replied by Cricket on topic T8SG v2 plus stuck in USB mode

Hi, did you resolve the issue? I just did the same thing! I did a backup of the original firmware before I did the new fw update hopefully that may help? I dont know what steps to take. I unfortunately chose the wrong update as did you. I have the t8sg v2 plus but chose the t8sg v2 instead. Radio is now stuck in usb mode.

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Moeder
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27 Apr 2019 20:25 #74156 by Moeder

Replied by Moeder on topic T8SG v2 plus stuck in USB mode

Just reflash with t8sg_v2_plus firmware, and don't forget to copy over filesystem. Or use Java deviation_uploader and do full install with the zip file.

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whoopa76
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03 Aug 2019 08:04 #74825 by whoopa76

Replied by whoopa76 on topic T8SG v2 plus stuck in USB mode

1. I connect from t8sg v2 plus model to my computer.
2. turn on the transmitter.
3. there is USB mark on the transmitter LCD screen.
4. Some USB drive pop up in my comuter.
5. I cannot read this drive. but also it does not work with mouse right click button.
6. I cannot format and erase this drive.
7. I tried to updated lastest firmware on transmitter. but result is same.

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vlad_vy
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03 Aug 2019 08:48 #74826 by vlad_vy

Replied by vlad_vy on topic T8SG v2 plus stuck in USB mode

Try to flash custom build, run it once and try to format USB drive.
www.deviationtx.com/forum/3-feedback-que...2-plus-bricked#74684

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Ultracon
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07 Aug 2019 01:52 #74835 by Ultracon

Replied by Ultracon on topic T8SG v2 plus stuck in USB mode

Go back to the drive window and make sure you have clicked to show "Hidden Drives". It will be there. Mine was. Then proceed.

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I.A.G.A
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29 Aug 2019 12:33 #75054 by I.A.G.A

Replied by I.A.G.A on topic T8SG v2 plus stuck

Hello, I've the same problem, I was persisting to do the upgrade with the erase build and after many times and try and error later it was succesfull. But, now I'ts the same problem here again. First after the upgrade was succesfull and I was copying the files onto the drive I've had several times needed to copy all of the content. Here are several problems and errors about copying some files. Finally all of the files are copied but on the next startup of the device the same problem was again overthere, all of the content was lossed and I need to redo all of that without succes. Please can anybody help me about this issue? Many thanks in advance and kind regards!

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