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| 1 | +--- |
| 2 | +title: "How to recover Runcam VRX from a bad flash" |
| 3 | +description: "A guide on how to recover Runcam VRX or unbrick it." |
| 4 | +--- |
| 5 | +import ThemeImage from '/src/components/ThemeImage.astro' |
| 6 | + |
| 7 | +If a bad flash has occured and the VRX memory (emmc) has been completely deleted, you will find that the VRX will not even boot up into command line. The Radxa has been completely wiped. |
| 8 | +But you don't need to worry. This guide will help you easily recover or unbrick your VRX. |
| 9 | + |
| 10 | +1. Make sure you have the correct firmware image for your install. Be that Ruby or the SBC image. It should be the standard image. NOT the emmc_flasher image. |
| 11 | + |
| 12 | +2. You will need RKDevtool and the driver. You can get them here: https://chipsee.com/docs/PCs/ARM/RK3568/Manuals/Software/Buildroot_Linux_Qt_5_15.html?srsltid=AfmBOoqwVNDxG6CyfUQU13LUY4l1JzBCPZu-VdtFjQS_MgFvvfeG2lgK |
| 13 | + |
| 14 | +3. Install the driver first. |
| 15 | + |
| 16 | +  |
| 17 | + |
| 18 | +4. Open config file in RKDevtool_Release_v2.93 folder |
| 19 | + |
| 20 | +5. Change Selected=1 to Selected=2. The app is now English. |
| 21 | + |
| 22 | +  |
| 23 | + |
| 24 | +6. There might be some random things here. Right click in the window and click “Clear items”. |
| 25 | + |
| 26 | +  |
| 27 | + |
| 28 | +7. Make sure the name is “loader”. Then click here: |
| 29 | + |
| 30 | +  |
| 31 | + |
| 32 | +8. You need this file. Download here: https://dl.radxa.com/rock3/images/loader/rock-3a/ |
| 33 | + |
| 34 | +  |
| 35 | + |
| 36 | +9. Right click add item. |
| 37 | + |
| 38 | +  |
| 39 | + |
| 40 | +10. Find your image. Double click storage and select EMMC. Make sure both items are ticked and write by address is ticked. |
| 41 | + |
| 42 | +  |
| 43 | + |
| 44 | +11. Put your VRX in bootloader mode. On the bottom there is a small button you can press with a pin next to the HDMI port. Hold it in, power up the VRX, wait 2 seconds and release. The VRX should be in bootloader mode and you can connect it to PC via the Type C port. It should say this: |
| 45 | + |
| 46 | +  |
| 47 | + |
| 48 | +12. Press run and wait. |
| 49 | + |
| 50 | +  |
| 51 | + |
| 52 | +14. After a while it should say “Download complete”. Then you can power everything down and then restart the VRX. |
| 53 | + |
| 54 | +15. Your VRX should now be unbricked. |
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