# Slim Phatty Bootloader 1.1
**URL:** https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676
**Category:** Little Phatty & Slim Phatty Forum
**Created:** [February 12, 2018, 6:02pm UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676 "2018-02-12T18:02:33Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Flareless](https://forum.moogmusic.com/u/Flareless)
#### Post date: [February 12, 2018, 6:02pm UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/1 "2018-02-12T18:02:33Z")
I’ve just picked up 3 Slim Phattys. 2 of them came with Bootloader 1.1 and 1 came with 1.0. I’ve run the update procedure to take them all to version 3.21.690. I used the same PhattyLoader program (v1.0 RC 2) and the same SlimSystem\_v3\_21\_690.hex file.
The SP with Bootloader still has version 1.0. When I look at the System Utilities menu on all 3 the 2 units with Bootloader v1.1 inidcate;
VERS: 3.21 690/34
The SP with Bootloader v1.0 indicates;
VERS: 3.21 690/30
I’d like to get all the units to have the same Bootloader and Firmware. How do you go about updating the bootloader from 1.0 to 1.1?
---
### Author:  [@Flareless](https://forum.moogmusic.com/u/Flareless)
#### Post date: [February 15, 2018, 9:22pm UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/2 "2018-02-15T21:22:13Z")
---
### Author:  [@ThunderBulldog](https://forum.moogmusic.com/u/ThunderBulldog)
#### Post date: [June 30, 2018, 6:04pm UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/3 "2018-06-30T18:04:41Z")
I finally got a hold of someone at Moog to let me know where they were hiding Bootloader 1.1
Updating requires buying a Silicon Laboratories USB Debug Adapter ($40 to $60, depending where you buy it).
Looks like you need to update Slim’s USB firmware from V30 to V34.
Link to update files:
[https://www.dropbox.com/sh/0mx1jgqdd8mevo6/AABK2Vfm-qJ-eDs2oSPMqb2Ta](https://www.dropbox.com/sh/0mx1jgqdd8mevo6/AABK2Vfm-qJ-eDs2oSPMqb2Ta)
---
### Author:  [@Flareless](https://forum.moogmusic.com/u/Flareless)
#### Post date: [July 3, 2018, 12:02am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/4 "2018-07-03T00:02:05Z")
Thanks tons T.B.!!
---
### Author:  [@wmiller](https://forum.moogmusic.com/u/wmiller)
#### Post date: [July 4, 2018, 11:50am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/5 "2018-07-04T11:50:46Z")
Thank you so much!
---
### Author:  [@Flareless](https://forum.moogmusic.com/u/Flareless)
#### Post date: [July 5, 2018, 11:51am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/6 "2018-07-05T11:51:11Z")
Digi-Key stocks the part!!!
Part # 336-1182-ND
---
### Author:  [@Flareless](https://forum.moogmusic.com/u/Flareless)
#### Post date: [July 24, 2018, 9:32am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/7 "2018-07-24T09:32:14Z")
I completed the update over the weekend and the previous MIDI issues I was having seem to have gone!
You can read about the full update process [at this link](https://richsstudioproject.wordpress.com/2018/07/24/phatty-firmware-fun-v1-1/)
Thanks again ThunderBulldog!
---
### Author:  [@Toby\_Cookie](https://forum.moogmusic.com/u/Toby_Cookie)
#### Post date: [February 14, 2024, 4:49pm UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/8 "2024-02-14T16:49:07Z")
> [@](#):
>
> I finally got a hold of someone at Moog to let me know where they were hiding Bootloader 1.1
> Updating requires buying a Silicon Laboratories USB Debug Adapter ($40 to $60, depending where you buy it).
> Looks like you need to update Slim’s USB firmware from V30 to V34.
>
> Link to update files:
> [https://www.dropbox.com/sh/0mx1jgqdd8mevo6/AABK2Vfm-qJ-eDs2oSPMqb2Ta](https://www.dropbox.com/sh/0mx1jgqdd8mevo6/AABK2Vfm-qJ-eDs2oSPMqb2Ta)
Hi, sorry to digging up the Old thread.
Do you have JTAG files for Sub37 ?
I have similar problem.
Thank You.
---
### Author:  [@maxpiano](https://forum.moogmusic.com/u/maxpiano)
#### Post date: [March 7, 2024, 7:31am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/9 "2024-03-07T07:31:17Z")
> [@](#):
>
> Hi, sorry to digging up the Old thread.
> Do you have JTAG files for Sub37 ?
> I have similar problem.
> Thank You.
Contact Moog support at [https://moogmusic-help.freshdesk.com/en/support/home](https://moogmusic-help.freshdesk.com/en/support/home) and they will help you.
---
### Author:  [@amplive](https://forum.moogmusic.com/u/amplive)
#### Post date: [August 3, 2024, 2:36am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/10 "2024-08-03T02:36:36Z")
is this still the only way to do this? I went from 1.1 to 1.0 after rebooting with the master button (or preset) pressed. I saw this somewhere on the site, but now my slim phatty is done. thanks for any help.
---
### Author:  [@stiiiiiiive](https://forum.moogmusic.com/u/stiiiiiiive)
#### Post date: [August 3, 2024, 9:35pm UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/11 "2024-08-03T21:35:17Z")
Hi! What exactly do you need?
---
### Author:  [@amplive](https://forum.moogmusic.com/u/amplive)
#### Post date: [August 4, 2024, 2:02am UTC](https://forum.moogmusic.com/t/slim-phatty-bootloader-1-1/19676/12 "2024-08-04T02:02:20Z")
I was wondering if I still need to get the debug adapter to update the firmware on the slim phatty. I went from 1.1 to 1.0 ans now it dies not work. Just says send firmware. Thank you for any help.