# Direct usb flashing **URL:** \ **Category:** Sovol SV07 Plus\ **Created:** [April 14, 2025, 6:41pm UTC](https://forum.sovol3d.com/t/direct-usb-flashing/7521 "2025-04-14T18:41:51Z")\ **Posts on this page:** 4\ **Page:** 2
**Author:** ![sk8erfal](https://avatars.discourse-cdn.com/v4/letter/s/ecc23a/32.png) [@sk8erfal](https://forum.sovol3d.com/u/sk8erfal)\ **Post date:** [April 16, 2025, 6:33pm UTC](https://forum.sovol3d.com/t/direct-usb-flashing/7521/23 "2025-04-16T18:33:53Z")
Sorry it took so long to respond, I was at my limit of 20 posts and was locked out, plus i had to go to work. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [April 16, 2025, 7:03pm UTC](https://forum.sovol3d.com/t/direct-usb-flashing/7521/24 "2025-04-16T19:03:02Z")
If you are comfortable playing with imaging the emmc I recommend you use the image found here: [https://github.com/torte71/InsideSovolKlipperScreen](https://github.com/torte71/InsideSovolKlipperScreen) Get the klipad 100% up to date and then use it to “make” a new bin file. Also if you turn the printer on it’s side there are LEDs on the board that will tell you if the board took the update. I don’t have the info on the blink sequence but I’m sure you can find them. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [April 16, 2025, 7:30pm UTC](https://forum.sovol3d.com/t/direct-usb-flashing/7521/25 "2025-04-16T19:30:23Z")
[ v1ncen7](https://forum.sovol3d.com/u/v1ncen7) 1 [Mar 2023](https://forum.sovol3d.com/t/sv06-mainboard-brick-after-updating-sovol-firmware/862/68) @sovol3d I have the same issue and I am unable to fix it despite numerous attempts… I received the printer yesterday, could print a benchy, then followed the steps to update the firmware. Only blue screen lights up now. I sent you an email with the details to [info@sovol3d.com](mailto:info@sovol3d.com) along with the order number. Let me know if any other troubleshooting steps… [UPDATE] I managed to fix it today. I spent a lot of time in forums, with some mentioning non sensical things like making the firmware file executable, etc. In case this helps someone: - Use a small 8GB SD card - Format the card with FAT32 and make sure you set the sector size to 4096 bytes (or ‘4K’) (-\>This is critical, many cards come formatted with 512b sector size) - copy only one firmware (bin file) and rename it with a short simple name that was not used before for flashing. I tried with many sd cards, formatting them from Mac os, Ubuntu and Windows without luck until I found about the sector size requirement. Then it worked right away. **AND** ## Partitioning the SD-card > Use these steps only if your card is bigger than 32GB. > For smaller cards follow the [SD-card formatting](https://torte71.github.io/InsideSovolKlipperScreen/updating_klipper.html#sd-card-formatting) steps. 1. Press +R key combination, enter “diskmgmt.msc” and press . ![partition-01-select](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/6/6270293b421052afd793cf814e035f8058e58f1f.png) 2. Locate the SD-card, right click it in the lower pane and select “delete volume”: ![partition-02-delete-volume](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/e/ef634d5ed73dad8e96f32acf84ccac25d39d9118.png) 3. Right click the lower pane again and select “create new volume”: ![partition-03-new-volume](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/d/d155f571fffbe4f882a8eb4a1e3f702e74b09427.png) 4. Press “Next” on the welcome screen: ![partition-04-welcome](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/a/ac6fefb2f1d5b338e6615913008dac6733b9ae1a.png) 5. Set the volume size to 8192 MB (allowed sizes are 2048 to 32767): ![partition-05-new-volume-size](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/a/aa66c927f530b70cc4a554c39e071c9b8a7d912c.png) 6. Make sure to use a drive-letter that is not in use e.g. by a network drive: ![partition-06-new-volume-letter](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/a/a0520a196a25cd8207d7c7f19b98d6de19be01da.png) 7. Make sure to set sector size to “4096” and filesystem is “FAT32” (other options will not work): ![partition-07-new-volume-format](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/b/bd259c859d689ed12cd423adbd3478f150912730.png) 8. Select “next” in the confirmation dialogue: ![partition-08-new-volume-confirm](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/e/e6a414be82e15a2a050c542d233c1934274ae043.png) 9. Finally, the new partition will look like this: ![partition-09-done](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/0/04508b418daa2782427679acaa86402236cfd9e6.png) ---
**Author:** ![sk8erfal](https://avatars.discourse-cdn.com/v4/letter/s/ecc23a/32.png) [@sk8erfal](https://forum.sovol3d.com/u/sk8erfal)\ **Post date:** [April 16, 2025, 8:03pm UTC](https://forum.sovol3d.com/t/direct-usb-flashing/7521/26 "2025-04-16T20:03:06Z")
OK that solved my problem, even though i was using only a 2GB sd card, changing the allocation unit size to 4096 worked and it finally flashed. Thanks for the tip, i cant believe such a simple thing was keeping me form flashing the firmware. [Previous page](https://forum.sovol3d.com/t/direct-usb-flashing/7521.md?page=1)