# Support question for Mopi
**URL:** https://forums.pimoroni.com/t/support-question-for-mopi/3599
**Category:** Support
**Created:** [December 19, 2016, 6:12am UTC](https://forums.pimoroni.com/t/support-question-for-mopi/3599 "2016-12-19T06:12:31Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@rsegoly](https://forums.pimoroni.com/u/rsegoly)
#### Post date: [December 19, 2016, 6:12am UTC](https://forums.pimoroni.com/t/support-question-for-mopi/3599/1 "2016-12-19T06:12:31Z")
Hi
I bought two boards and basically it work fine, but I have no place to get further information (email, forum) specific for this product
1. Where can I find the config file on Raspberry? I modified the config using mopicli but after reboot it returns to default
2. I need to understand the usage of solar panel, if I combine battery and solar panel will it use solar power first?
3. Can I use it to shutdown when main power (USB) is down? Because default behaviour is use batteries till it is exhausted
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### Author:  [@RogueM](https://forums.pimoroni.com/u/RogueM)
#### Post date: [December 19, 2016, 10:22am UTC](https://forums.pimoroni.com/t/support-question-for-mopi/3599/2 "2016-12-19T10:22:51Z")
I can’t answer those questions, but wanted to post the suggestion to open an issue on the github associated with the product:
> **[hamishcunningham/pi-tronics](https://github.com/hamishcunningham/pi-tronics/)**
>
> pi-tronics - Source code for Raspberry Pi GATE projects.
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### Author:  [@rsegoly](https://forums.pimoroni.com/u/rsegoly)
#### Post date: [December 21, 2016, 5:37am UTC](https://forums.pimoroni.com/t/support-question-for-mopi/3599/3 "2016-12-21T05:37:13Z")
there is one open issue there from Oct, ity is not an active forum
I bought the devices on pimoroni so expect some support from them