# DEV-15123 **URL:** \ **Category:** Arduino\ **Created:** [February 26, 2020, 1:00am UTC](https://community.sparkfun.com/t/dev-15123/39020 "2020-02-26T01:00:09Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![amy101](https://avatars.discourse-cdn.com/v4/letter/a/a587f6/32.png) [@amy101](https://community.sparkfun.com/u/amy101)\ **Post date:** [February 26, 2020, 1:00am UTC](https://community.sparkfun.com/t/dev-15123/39020/1 "2020-02-26T01:00:09Z")
I have been trying to get this board to upload code for two weeks now. Every time I try to upload, I get the error message: Arduino: 1.8.10 (Windows 10), Board: “Arduino Uno” Sketch uses 11380 bytes (35%) of program storage space. Maximum is 32256 bytes. Global variables use 588 bytes (28%) of dynamic memory, leaving 1460 bytes for local variables. Maximum is 2048 bytes. avrdude: loadaddr(): (b) protocol error, expect=0x14, resp=0xfc avrdude: stk500\_paged\_load(): (a) protocol error, expect=0x10, resp=0x00 avrdude: stk500\_cmd(): programmer is out of sync avr\_read(): error reading address 0x0000 read operation not supported for memory “flash” avrdude: failed to read all of flash memory, rc=-2 avrdude: stk500\_disable(): protocol error, expect=0x14, resp=0x00 avrdude: stk500\_disable(): protocol error, expect=0x14, resp=0x00 This report would have more information with “Show verbose output during compilation” option enabled in File → Preferences. I have tried everything I can think of to fix the issue. Any help would greatly be appreciated. ---
**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:** [February 26, 2020, 4:53pm UTC](https://community.sparkfun.com/t/dev-15123/39020/2 "2020-02-26T16:53:17Z")
Hello amy101, First, can you verify if you have the correct [[CH340 Drivers](https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers?_ga=2.214553106.407553103.1582559371-2114068872.1578439588) installed? Secondly, can you also verify if you tried using several other USB cables? Thirdly, do you have anything attached to Digital pins 0 & 1 (tx/rx)?]([How to Install CH340 Drivers - SparkFun Learn](https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers?_ga=2.214553106.407553103.1582559371-2114068872.1578439588)) ---
**Author:** ![amy101](https://avatars.discourse-cdn.com/v4/letter/a/a587f6/32.png) [@amy101](https://community.sparkfun.com/u/amy101)\ **Post date:** [February 27, 2020, 3:26am UTC](https://community.sparkfun.com/t/dev-15123/39020/3 "2020-02-27T03:26:29Z")
I have checked those things, besides the pins but I am not sure how to check those. Upon further investigation, the code does work. I still get that error code even though my code correctly uploads. I am not sure why. ---
**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:** [February 27, 2020, 5:47pm UTC](https://community.sparkfun.com/t/dev-15123/39020/4 "2020-02-27T17:47:53Z")
So the board is functioning with the uploaded code, but you’re still getting the error despite a successful upload? ---
**Author:** ![amy101](https://avatars.discourse-cdn.com/v4/letter/a/a587f6/32.png) [@amy101](https://community.sparkfun.com/u/amy101)\ **Post date:** [February 28, 2020, 1:46am UTC](https://community.sparkfun.com/t/dev-15123/39020/5 "2020-02-28T01:46:57Z")
That is absolutely correct. It has never told me that the upload was successful. It gives me that error code but the code works properly when I check it in the serial monitor. I am not sure why this happens but it is frustrating. ---
**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:** [February 28, 2020, 4:33pm UTC](https://community.sparkfun.com/t/dev-15123/39020/6 "2020-02-28T16:33:52Z")
This sounds rather familiar. We’ve had boards using the CH340 USB to Serial IC gives this issue. Usually, it just needs the chip replaced. I’ll PM you for more details. ---
**Author:** ![Ray\_Michael](https://avatars.discourse-cdn.com/v4/letter/r/f08c70/32.png) [@Ray\_Michael](https://community.sparkfun.com/u/Ray_Michael)\ **Post date:** [March 22, 2020, 6:13am UTC](https://community.sparkfun.com/t/dev-15123/39020/7 "2020-03-22T06:13:21Z")
I am having the same issue: avrdude: loadaddr(): (b) protocol error, expect=0x14, resp=0xfc avrdude: loadaddr(): (b) protocol error, expect=0x14, resp=0xfc avrdude: stk500\_paged\_load(): (a) protocol error, expect=0x10, resp=0x00 avrdude: stk500\_cmd(): programmer is out of sync avr\_read(): error reading address 0x0000 read operation not supported for memory “flash” avr\_read(): error reading address 0x0000 avrdude: failed to read all of flash memory, rc=-2 avrdude: stk500\_disable(): protocol error, expect=0x14, resp=0x00 Is there a fix for this problem? ---
**Author:** ![Ray\_Michael](https://avatars.discourse-cdn.com/v4/letter/r/f08c70/32.png) [@Ray\_Michael](https://community.sparkfun.com/u/Ray_Michael)\ **Post date:** [March 22, 2020, 8:22am UTC](https://community.sparkfun.com/t/dev-15123/39020/8 "2020-03-22T08:22:29Z")
I have the same issue with my redboard, can you please confirm what the resolution is?