# Firmware not uploading but not verifying **URL:** \ **Category:** Troubleshooting\ **Created:** [April 27, 2024, 3:05pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815 "2024-04-27T15:05:33Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![ww111](https://avatars.discourse-cdn.com/v4/letter/w/7ab992/32.png) [@ww111](https://forums.maslowcnc.com/u/ww111)\ **Post date:** [April 27, 2024, 3:05pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/1 "2024-04-27T15:05:33Z")
Got the unit built, plugged in, lines retracted. (It pulled one at a time, had to hit retract 4 times). I found “Maslow” as a network the controller page displayed in my browser and I followed the instructions to upload firmware which SEEMED to load and then got this error (Multiple times) ![Connect Error](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/3X/c/3/c3aebab3475913774fdf5b20136939c0bf3f1429.png) Any help, I’m going to test it on my Maslow 2 bed ASAP. ---
**Author:** ![RomanG](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/romang/32/22192_2.png) [@RomanG](https://forums.maslowcnc.com/u/RomanG)\ **Post date:** [April 27, 2024, 4:06pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/2 "2024-04-27T16:06:50Z")
Sorry to hear that. Could you give us some details? What firmware version did you try to upload? I understand, the Maslow network still apoears, and you can connect to it? Just the web ui won’t load? Have you tried typing maslow.local in your browser address bar and connect to it like that? ---
**Author:** ![ww111](https://avatars.discourse-cdn.com/v4/letter/w/7ab992/32.png) [@ww111](https://forums.maslowcnc.com/u/ww111)\ **Post date:** [April 27, 2024, 5:09pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/3 "2024-04-27T17:09:19Z")
I’m connecting according to the computer. Web UI (ESP3D for FluidNC) comes up and I can see the unit. I click the tab “FluidNC” then Click on the yellow update firmware button. I can see the files on the computer and I select “firmware.bin” and it Asks twice if I want to upload and the second time I press yes it gives me a Error :0 message with a red triangle (Different from yesterday) ---
**Author:** ![Bob\_Craig](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bob_craig/32/17242_2.png) [@Bob\_Craig](https://forums.maslowcnc.com/u/Bob_Craig)\ **Post date:** [April 27, 2024, 5:20pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/4 "2024-04-27T17:20:36Z")
Have you tried downloading the firmware again to make sure it isn’t a corrupted file? ---
**Author:** ![ww111](https://avatars.discourse-cdn.com/v4/letter/w/7ab992/32.png) [@ww111](https://forums.maslowcnc.com/u/ww111)\ **Post date:** [April 27, 2024, 5:56pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/5 "2024-04-27T17:56:48Z")
Great idea. DLd the .7 and it uploaded 100% then immediately showed “Upload rejected not enough space” ---
**Author:** ![ww111](https://avatars.discourse-cdn.com/v4/letter/w/7ab992/32.png) [@ww111](https://forums.maslowcnc.com/u/ww111)\ **Post date:** [April 27, 2024, 6:01pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/6 "2024-04-27T18:01:00Z")
Looked at the local Files and have favicon.ico 1150 index.html.gz 157393 maslow.yaml 2116 Total: 192.00 KB | Used: 172.00 KB 89% ---
**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\ **Post date:** [April 27, 2024, 6:13pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/7 "2024-04-27T18:13:31Z")
check that your system didn’t uncompress the index.html.gz, macs like to do that for example. the files must be named exactly the same as the files they are replacing, or you get that error. David Lang Collins wrote: ---
**Author:** ![ww111](https://avatars.discourse-cdn.com/v4/letter/w/7ab992/32.png) [@ww111](https://forums.maslowcnc.com/u/ww111)\ **Post date:** [April 27, 2024, 6:27pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/8 "2024-04-27T18:27:04Z")
so the Index.html.gz file goes into the maslow compressed? ---
**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\ **Post date:** [April 27, 2024, 8:52pm UTC](https://forums.maslowcnc.com/t/firmware-not-uploading-but-not-verifying/20815/9 "2024-04-27T20:52:31Z")
Collins wrotewrote: > so the Index.html.gz file goes into the maslow compressed? yes