Thanks for the comments.
I did assume it was end of life, and at 14 years, deservedly so. I was just wondering if there was any possibility of getting it to work again.
I've bought a shiny new OSTC2 gen 5 as a replacement, so I'm happy again.
Search found 5 matches
- 15 Jun 2026, 12:20
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC Mk2 Screen staying dark
- Replies: 4
- Views: 122
- 10 Jun 2026, 13:08
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC Mk2 Screen staying dark
- Replies: 4
- Views: 122
Re: OSTC Mk2 Screen staying dark

This is what the screen looks like when I turn it on, then it goes dark again.
- 09 Jun 2026, 18:50
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC Mk2 Screen staying dark
- Replies: 4
- Views: 122
OSTC Mk2 Screen staying dark
Half way through a liveaboard week, my Mk2 didn't turn on during a dive. It had been showing 68% battery on the previous day's dive, and had been plugged into a USB power bank overnight. I cancelled the dive.
When I pressed buttons, the screen lit up bright white with black dots (I think this is ...
When I pressed buttons, the screen lit up bright white with black dots (I think this is ...
- 22 Jun 2020, 23:10
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC Mk.2 Button Sensitivity
- Replies: 2
- Views: 8526
Re: OSTC Mk.2 Button Sensitivity
Thanks. I was just interested that the sensitivity is a lot higher when the battery is charging. Is this just a conincidence?
- 16 Jun 2020, 17:49
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC Mk.2 Button Sensitivity
- Replies: 2
- Views: 8526
OSTC Mk.2 Button Sensitivity
The set/menu button on my mk.2 is not very sensitive a lot of the time - needs a hard push. The other day, I used it when it was plugged into the charger and the button is really sensitive.
I was wondering if it's more sensitive because of the higher voltage, and whether the battery might be a bit ...
I was wondering if it's more sensitive because of the higher voltage, and whether the battery might be a bit ...