First of all, I don’t know where this topic goes, so I uploaded it to Uncategorized. Feel free to change it to the correct field.
I bought 13 Grovepi + base kit on 10/07/2017 with the company Modmypi. They were used just 6 days, but three of them suddenly stopped working properly. In addition, two GrovePi’s have the RST red LED permament on. Anyway, the problems are the next ones:
Two GrovePi’s does nothing (sensors doesn’t respond - nor input nor output ones.). I think that one board changes the color of the LCD, but nothing more.
The last GrovePi works quite well, but it has one problem: the LCD doesn’t display any text (it just can change the background color). Obviously, I tried the LCD with other boards and viceversa.
I talked with them but they redirected me to your web, saying that you are the ones that can give me support with that. Is there something I can do to repair them before doing a claim for hardware fault?
Thank you in advance.