Jumper T8SG V2 Plus bricked?

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30 Jun 2019 13:07 #74620 by Seankhu
Jumper T8SG V2 Plus bricked? was created by Seankhu
Hello everyone,
I recently got the issue of my Jumper T8SG not turning on, so I looked up tutorials on how to fix this. I ending up deleting all my files when entering USB mode and then entering DFU mode to update to the newest firmware. However, I am now unable to enter USB mode as it "crashes" within 1 second of entering USB mode. Please advice on what to do next.

Best Regards,
Sean

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01 Jul 2019 10:08 - 01 Jul 2019 11:00 #74627 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
First try to use Jumper "Fix Kit", it's nightly build from 20.07.2018.
www.hobbyporter.com/u_file/1809/file/c89236007d.zip

Also, you can try custom build based on stable v5.0.0 release core
www.deviationtx.com/forum/builds/6407-de...cols?start=480#74306

If you will get access to USB mode, first format USB drive. After write to USB drive use Safely Remove Hardware.
Last edit: 01 Jul 2019 11:00 by vlad_vy.

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05 Jul 2019 13:19 #74681 by Seankhu
Replied by Seankhu on topic Jumper T8SG V2 Plus bricked?
Hi, I have tried to fix my software to the Fix Kit using the DFU File and the Dfuse USB application as I am unable to access USB mode. USB Mode will just shut down my transmitter within a few seconds of being on. Updating to the Fix Kit does not seem to have helped. Appreciate if you can give me more advice.
Best Regards,
Sean

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05 Jul 2019 14:09 #74682 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
Try to flash special build with bulk flash memory erase. Start it one time only, then try to use USB mode and format USB drive.

www.deviationtx.com/forum/6-general-disc...b-mode?start=0#70474

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05 Jul 2019 15:09 - 05 Jul 2019 15:10 #74683 by Seankhu
Replied by Seankhu on topic Jumper T8SG V2 Plus bricked?
Hi vlad_vy, currently I am unable to enter USB mode at all, even after flashing the attached file. I am also unable to boot the transmitter on, it just beeps.
Last edit: 05 Jul 2019 15:10 by Seankhu.

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05 Jul 2019 15:32 #74684 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
Probably you can have new version T8SG V2 Plus with different flash memory chip. Try this build with bulk flash memory erase and flash memory type auto detection.

File Attachment:

File Name: deviation-...7-05.zip
File Size:671 KB
Attachments:

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05 Jul 2019 15:44 #74685 by Seankhu
Replied by Seankhu on topic Jumper T8SG V2 Plus bricked?
Can I ask how to do this "bulk flash memory erase" and "flash memory type auto detection. Because I am unable to find them in the Dfuse Tool

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05 Jul 2019 15:48 #74686 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
It's inside firmware, simply flash and run it.

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05 Jul 2019 15:49 - 05 Jul 2019 15:51 #74687 by Seankhu
Replied by Seankhu on topic Jumper T8SG V2 Plus bricked?
Still having the same problem, after flashing. Trying to enter USB Mode, the red light is on for a while, then it just dies. Also unable to turn it on, it just dies.
Last edit: 05 Jul 2019 15:51 by Seankhu.

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05 Jul 2019 15:53 #74688 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
I think you have hardware problem with flash memory chip or something else.

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05 Jul 2019 15:54 #74689 by Seankhu
Replied by Seankhu on topic Jumper T8SG V2 Plus bricked?
So no way to fix this?

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05 Jul 2019 16:05 #74690 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
The bulk erase usually help with any USB drive problems. But with hardware problem I can't help.

Try again to flash nightly build, if it start but USB mode will crash, most likely it's flash memory chip problem. If you can, replace flash memory chip (8-pin chip to the left from MCU).

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05 Jul 2019 16:12 #74691 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
First, check the flash memory chip soldering, splashes and so on.

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05 Jul 2019 17:05 - 05 Jul 2019 17:06 #74693 by Seankhu
Replied by Seankhu on topic Jumper T8SG V2 Plus bricked?
The flash memory chip looks good, also the inside says that it is the Jumper T8 V3 Plus... Do you know any possible places I can buy a replacement chip?
Last edit: 05 Jul 2019 17:06 by Seankhu.

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30 Aug 2019 14:25 #75055 by I.A.G.A
Replied by I.A.G.A on topic Jumper T8SG V2 Plus bricked?
Hi VLAD, Many thanks to provide the build 2019-07-05 for the T8SGplus it works now with this build using te dfuse uploader. Can we use this build for daily use or need I to this build upgrade to the last nightly build? I'm confused about how to select a model and a kind of protocol for the model. I've here the mjx bugs 5w that I want to bind and fly with this RC T8sgplus. Oter problem is that the RC doesn't give any beep when I change a jumper or by starting up or set this device off. I was also make the external voicebox and before my issues this works well, now I've write the correct parametres into the ini-files as before but no voice. When I was persisting to flashin the RC one time I have had the beeps on the RC. My questions: 1. How can I find the correct protocol for the MJX bugs 5W and for the Hubsan 502S? 2. I think this RC cames out of factory with the beeps activated and I've no change settings about this beeps, how can I set the beeps on? I use my pc to set all of the parametres, for me it's the most handy tool because I'm visual inpaired person and have no access to the menu's on the device right. That's the raison to buy a RC that can be set settings on the pc. That's super for my as a blind dronepilot. Many thanks for answeres about my questions. Kind regards and many thanks in advance!.

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30 Aug 2019 14:47 #75056 by vlad_vy
Replied by vlad_vy on topic Jumper T8SG V2 Plus bricked?
Will be better to use reference nightly build, nightly builds not stable right now:
www.deviationtx.com/forum/builds/8508-re...ild-deviation-v5-x-x

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