# Microview Code Uploads then doesn't **URL:** \ **Category:** Arduino\ **Created:** [August 13, 2020, 9:20pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262 "2020-08-13T21:20:50Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![neuro\_nerd](https://avatars.discourse-cdn.com/v4/letter/n/2bfe46/32.png) [@neuro\_nerd](https://community.sparkfun.com/u/neuro_nerd)\ **Post date:** [August 13, 2020, 9:20pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/1 "2020-08-13T21:20:50Z")
Hello, I’m having issues with my Microview. I’ve uploaded a program and it works perfect…but when I edit the code just slightly then I get the following errors: Arduino: 1.8.12 (Mac OS X), Board: “Arduino Uno” Sketch uses 14804 bytes (45%) of program storage space. Maximum is 32256 bytes. Global variables use 1371 bytes (66%) of dynamic memory, leaving 677 bytes for local variables. Maximum is 2048 bytes. avrdude: verification error, first mismatch at byte 0x30d8 0x4a != 0x4e avrdude: verification error; content mismatch avrdude: verification error; content mismatch \*\*As a note I changed a temperature setting (hightemp = 125 to hightemp=127, and lowtemp=59 to lowtemp =61) and the program will compile fine but won’t upload now. However if I change the code back to the original it uploads just fine. ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [August 14, 2020, 3:38pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/2 "2020-08-14T15:38:41Z")
Was this a custom sketch or one our example sketches? ---
**Author:** ![neuro\_nerd](https://avatars.discourse-cdn.com/v4/letter/n/2bfe46/32.png) [@neuro\_nerd](https://community.sparkfun.com/u/neuro_nerd)\ **Post date:** [August 17, 2020, 12:58pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/3 "2020-08-17T12:58:06Z")
It was custom. I’ve included the sketch as a .txt file Also I’m using the same settings shown in the Microview hookup guide: Board - Arduino Uno Port - /dev/cu.usbserial… Programmer - USBtinyISP [\_3DPrintPCR.ino.txt](https://community.sparkfun.com/uploads/short-url/9toPkqdx4IwPH3IbpPkYPnfPhTB.txt) (14.4 KB) ---
**Author:** ![neuro\_nerd](https://avatars.discourse-cdn.com/v4/letter/n/2bfe46/32.png) [@neuro\_nerd](https://community.sparkfun.com/u/neuro_nerd)\ **Post date:** [August 17, 2020, 2:42pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/4 "2020-08-17T14:42:12Z")
I just tried this exact same thing with another Microview and it works fine. Should I burn the bootloader for the other Microview to fix the issue? ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [August 17, 2020, 3:55pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/5 "2020-08-17T15:55:59Z")
If your other MicroView is operating correctly, then I would agree that it’s worth a shot. I can’t guarantee that this will fix the issue, but it’s the next logical step. If it doesn’t resolve the issue, then please let me know. ---
**Author:** ![neuro\_nerd](https://avatars.discourse-cdn.com/v4/letter/n/2bfe46/32.png) [@neuro\_nerd](https://community.sparkfun.com/u/neuro_nerd)\ **Post date:** [August 17, 2020, 4:44pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/6 "2020-08-17T16:44:53Z")
Burning the bootloader using an Uno board did the trick ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [August 17, 2020, 5:17pm UTC](https://community.sparkfun.com/t/microview-code-uploads-then-doesnt/40262/7 "2020-08-17T17:17:45Z")
That’s great, glad to hear it.