# Revive an outdated C.H.I.P. from factory OS to Debian Buster
This guide and scripts are based on the excelent work made by https://github.com/Thore-Krug/Flash-CHIP and the guide in https://gist.github.com/luzhuomi/526fbcc30f3522f09eacf20d0f776fa5

## Instructions
### Part 1: Stock image
1. Remove the C.H.I.P. from its case (in case you have a Pocket C.H.I.P.).
2. Connect the FEL and a GROUND pin of the C.H.I.P. (for example, with a paperclip).
3. Connect the C.H.I.P. its micro USB port to a USB port of your Linux machine. Make sure that the port and cable allow for plenty of power. If you get a FEL error, it may be because the C.H.I.P. is running under-voltage.
4. On the Linux machine:
    - run ` git clone https://github.com/asophila/Flash-CHIP.git` to clone this repository
    - `cd` into the location where you stored this repository
    - run `sudo chmod +x Flash.sh`
    - run `./Flash.sh`
    - Select the version you want to install
    - Wait until the installation finishes
    
### Part 2: update and upgrade debian jessie (wich is obsolete and archived)
1. Remove the FEL connection (the paperclip)
2. Unplug 3 seconds
3. Plug the C.H.I.P. again
4. Connect to the chip using `sudo screen /dev/ttyACM0`
5. Use user: chip  and password: chip to connect
6. run `sudo nmtui` to set-up a wifi connection to <YOUR SSID>
7. run `sudo nmcli c` to show your current connections
8. run `sudo nmcli c m <YOUR SSID> connection.autoconnect yes` to set autoconnection to <YOUR SSID> wifi in case of trouble
    
### Part 3: upgrade debian jessie to debian stretch
1. run `sudo su -` to allow all the next changes as superuser
2. run `curl -o https://raw.githubusercontent.com/asophila/Flash-CHIP/master/CHIP-updater/jessie-to-stretch.sh | bash` to update from Debian Jessie to Debian Stretch
3. reboot C.H.I.P. into Debian Stretch