Hasselblad 2 check magazine error

Wasted a perfectly good roll from 1998 today with an error about check magazine on my H2. Trying to figure out what happened.

I put in the roll. The DX code(?) wasn't read, or it was still being held over from the previous one. Weird I thought- I thought it cleared when you opened the magazine. A few button presses and it's set to 160iso and 120 film. Film advances. Attempt to take a pic. Fail. See some error about check magazine. Ok, gotta lose a shot, no big deal. On off, jigger around. Nope. Still check magazine error. On off, blow some dust around to make sure maybe nothing is sticking to the pins, and nope, check magazine error. Get home, load next roll. Same error. Jiggle everything on and off again. Notice, there's a 1 on the shot listing when it didn't advance yet. Weird. Magazine back goes off, back on, boom - display rolled up to shot one and showed a 1. Looks to be working now.

Any idea what I did wrong? Bad handling in general perhaps? I'm not the most light of carries, but I do treat the H2 with a special care because it's a film camera.

Have you checked the battery in the film magazine? It uses a CR2032 / 3V lithium battery. Just curious as batteries are a common cause of odd or inconsistent behavior and that battery is the out of sight, out of mind type that doesn't get much attention usually.

No, I have not. I thought the camera wouldn't work if it was dead, but I don't recall reading anything about errors over low power, but that seems logical. Since I have no information on the camera's history, and it would probably be wise to check that thing, perhaps it would be wise to change it. Thank you for the tip.

I'm not sure what might happen if the battery inside the film magazine is weak, but not quite dead. Just a thought as a place to start.

Cleaning all of the contacts on the body and back would be another in those firsts steps of troubleshooting. Hope you find an easy fix like those mentioned.

Directions for proper cleaning?

When I opened it during the lost roll, I noticed there was a smidge of paper in there and it was hard to blow out, but it did. The error persisted afterward, so it wasn't the cause, but that was my first fear, I jammed something. I've got a roll in there from 1998 now. Let's hope I can get it shot without an issue and then I will certainly put in a new battery.

For the contacts, a soft dry cloth or wipe or one lightly dampened with some isopropyl alcohol should clean the contacts well enough. It's a good opportunity to check the condition of any pins at the same time. I would just use some reasonable caution and wipe them gently. No need to rub with any force.

Here's link to the manual for the film magazine in case you're interested...

hasselbladrepair.com/wp-content/uploads/2018/07/hasselblad-hm-film-magazine_user-manual-v1.pdf

Wish I knew this had its own manual months ago. Thank you.

Happy to help. The film magazine manual is from B23 ApS hasselbladrepair.com in Denmark who provides authorized service and parts for older Hasselblad and Imacon products. hasselbladrepair.com/service-2/manuals

You can also find the film magazine instructions in the manual for the H2 and some other camera models. Hasselblad has manuals available to download on their website for all current products and most legacy products as well. www.hasselblad.com/my-hasselblad/downloads

I hope it all works out and you're happily shooting away soon.