# USB logging issue **URL:** \ **Category:** EMU PRO\ **Created:** [February 22, 2024, 4:15pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788 "2024-02-22T16:15:08Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Rossco](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/rossco/32/899_2.png) [@Rossco](https://community.ecumaster.com/u/Rossco)\ **Post date:** [February 22, 2024, 4:15pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788/1 "2024-02-22T16:15:08Z")
Hello guys, I have had my Pro8 up and running for over a month now, and i love it. I have one issue that i cant get to work and thats the USB logger. I have double checked the wiring twice now and it is definetly correct as per the diagram supplied with the emu. I have tried multiple usb sticks and the problem remains. these have always been fresh formatted to FAT32 and are 2 & 8GB nothing bigger I have attached a picture of my issue. Any help with this would be appreciated. Thanks ![Pro8](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/1X/a000ae8d4a78f0a37cbc80a390da7cc8acf8b756.jpeg) ---
**Author:** ![Rossco](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/rossco/32/899_2.png) [@Rossco](https://community.ecumaster.com/u/Rossco)\ **Post date:** [February 28, 2024, 12:50pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788/2 "2024-02-28T12:50:24Z")
Anyone help with this? Having the laptop beside me all the time for logging is getting annoying. Thanks ---
**Author:** ![Jan\_Matlag\_ECUMASTER](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jan_matlag_ecumaster/32/1466_2.png) [@Jan\_Matlag\_ECUMASTER](https://community.ecumaster.com/u/Jan_Matlag_ECUMASTER)\ **Post date:** [February 28, 2024, 2:35pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788/3 "2024-02-28T14:35:39Z")
What brand/model of flashdrive are you using? We are recommending SANDISK USB 3.0 flashdrives. These are cheap and reliable. Flashdrives of up to 32 GB are pre-formatted with FAT32. MemoryNotReady means that the EMU PRO can somehow communicate over the USB, but the flashdrive “Mass Storage Device” protocol is not responding. ---
**Author:** ![Maciej.Ordowski\_ECUMASTER](https://avatars.discourse-cdn.com/v4/letter/m/e495f1/32.png) [@Maciej.Ordowski\_ECUMASTER](https://community.ecumaster.com/u/Maciej.Ordowski_ECUMASTER)\ **Post date:** [February 28, 2024, 3:35pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788/4 "2024-02-28T15:35:08Z")
I have checked my SanDisk 32GB flash drive on ADU (should work in the same way) and with proper wiring while plugging the status changes: Disconnected - AccesingUSB - Saving With exchanged digital pins: Disconnected - AccessingUSB - Disconnected (stable, not changing again) It is not easy to figure out as there could be many possible reasons. 1. What models of USB sticks do you use? 2. Does it work when engine is turned off? 3. Did you connect USB cable shield to GND? 4. Could you provide a log file with channels under “Logger” section logged with at least 100Hz when you connect the USB stick? ---
**Author:** ![Rossco](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/rossco/32/899_2.png) [@Rossco](https://community.ecumaster.com/u/Rossco)\ **Post date:** [February 28, 2024, 4:59pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788/5 "2024-02-28T16:59:12Z")
ill be honest it has been cheap 8gb flash drives i have been using. I will order a USB 3.0 sandisk and report back. Thanks ---
**Author:** ![Rossco](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/rossco/32/899_2.png) [@Rossco](https://community.ecumaster.com/u/Rossco)\ **Post date:** [March 27, 2024, 4:38pm UTC](https://community.ecumaster.com/t/usb-logging-issue/788/6 "2024-03-27T16:38:13Z")
Hi guys, Sorted now, changed all the usb logger wiring and it has solved my issue. Wether it was a broken wire withing my harness or just getting interferance im not sure. ![EMU](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/1X/8aa8a851f828b1f631b5f70b3d8fb245d70103f1.jpeg)