T8SG v2 plus stuck in USB mode

More
01 Oct 2018 22:15 #71130 by Tang10
Replied by Tang10 on topic T8SG v2 plus stuck in USB mode
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

Please Log in or Create an account to join the conversation.

More
02 Oct 2018 04:56 - 02 Oct 2018 05:07 #71136 by vlad_vy
Replied by vlad_vy on topic T8SG v2 plus stuck in USB mode
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.

Please Log in or Create an account to join the conversation.

More
02 Oct 2018 05:25 #71138 by zulmohd
Replied by zulmohd on topic T8SG v2 plus stuck in USB mode
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.

Please Log in or Create an account to join the conversation.

More
02 Oct 2018 16:22 #71149 by Tang10
Replied by Tang10 on topic T8SG v2 plus stuck in USB mode
If the flash chip is damaged, can I just buy a new chip and solder it in?

Seems like a easy solution

Please Log in or Create an account to join the conversation.

More
02 Oct 2018 18:03 - 02 Oct 2018 18:07 #71151 by aMax
Replied by aMax on topic T8SG v2 plus stuck in USB mode
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

Please Log in or Create an account to join the conversation.

More
02 Oct 2018 21:26 #71153 by Tang10
Replied by Tang10 on topic T8SG v2 plus stuck in USB mode
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

Please Log in or Create an account to join the conversation.

More
02 Oct 2018 21:43 #71154 by zulmohd
Replied by zulmohd on topic T8SG v2 plus stuck in USB mode
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

Please Log in or Create an account to join the conversation.

More
03 Oct 2018 04:04 #71157 by vlad_vy
Replied by vlad_vy on topic T8SG v2 plus stuck in USB mode
Electronics is the science of contacts...

Please Log in or Create an account to join the conversation.

More
03 Oct 2018 09:32 #71158 by aMax
Replied by aMax on topic T8SG v2 plus stuck in USB mode
Congrats.

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

Please Log in or Create an account to join the conversation.

More
05 Oct 2018 12:42 #71185 by Tang10
Replied by Tang10 on topic T8SG v2 plus stuck in USB mode
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?

Please Log in or Create an account to join the conversation.

More
01 Nov 2018 19:30 #71522 by Ultracon
Replied by Ultracon on topic T8SG v2 plus stuck in USB mode
A lot of the time your drive will have hidden items. If you click to show hidden items it should pop up.

Please Log in or Create an account to join the conversation.

More
09 Mar 2019 20:55 #73291 by BIllyU
Replied by BIllyU on topic T8SG v2 plus stuck in USB mode
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

Please Log in or Create an account to join the conversation.

More
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.

Please Log in or Create an account to join the conversation.

More
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.

Please Log in or Create an account to join the conversation.

More
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.

Please Log in or Create an account to join the conversation.

More
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

Please Log in or Create an account to join the conversation.

More
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.

Please Log in or Create an account to join the conversation.

More
29 Aug 2019 12:33 #75054 by I.A.G.A
Replied by I.A.G.A on topic T8SG v2 plus stuck in USB mode
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!

Please Log in or Create an account to join the conversation.

Time to create page: 0.355 seconds
Powered by Kunena Forum