ZOOM H2 LOCKED UP DURING A RECORDING SESSION AND WILL NOT COME BACK ON...TRIED AC ADAPTER EVEN. NEW BATTERIES....NEVER BEEN DROPPED. hAS WORKED FOR 6 MONTH NO PROBLEMS!

No solution, just a workaround. I have used the H2 with firmware 1.90 successfully with Windows 7, but lately the H2 is not recognized anymore. Built-in obsolescence maybe?
Anyway, I just take out the card and put it in a card reader. It is faster also. Card readers are cheap.

I can't get any sound? What is the problem?

I am having the same problem with my Zoom-H2. I have 2 2650 mah rechargeables, and the draw is such that 20-30 minutes of record &/or playback kills the batteries. Last night I just turned the power on and did nothing. 5 hours later the batteries were dead...

This isn't a solution. It is a reaffirmation that you aren't crazy!

I happen to know that for this certain camera it uses a battery which if it runs low enough on EN it will actually burn through the S.disc of the E!Reader in the batteries supplementary storage facility. In simple terms, a new battery is required, unless of course you want to spend $600 repairing the battery through an expert which now-a-days is almost impossible to find.

Call 911. Joke. Call zoom service!

Ask your dealer, the one you bought it from. They may suggest an easy fix or guide you best on how to get it repaired, or at the very least suggest a place near you to have it repaired. If your dealer doesn't know, ask any Zoom dealer for repair info. Meanwhile, I assume you've checked your battery compartment to make sure the terminal connections are not loose (and of course that you've tried new batteries - :) ). Also, check Menu>Battery to see if alkaline or nickel batteries is checked. Finally, try removing your SD card and re-inserting, (even re-formatting the card, perhaps, but trying merely re-inserting first). But make sure any songs/info on the card are backed up first, because you will lose info if re-formatting the card. (For that matter, you could try a new card.)

Fraid so - these don''t get mended.

I presume you have tried new batteries, and/or the problem persists with the AC adapter. If so, have you tried replacing the SD card?

If these do not work then it is probably time for a repair, but I'd ask the Zoom Corp or your dealer first. They may have heard of similar problems and know a painless fix.
www.zoom.co.jp (Japan)

If you used the adapter to power it with batteries in, you may have blown it

resetting may help solving the problem. in order to reset your Olympus Digital Camera, please follow the instructions provided below: 1. Remove all cards, cables, etc. 2. Remove the lens cap or slide open the lens cover and turn the camera "ON" in any of the record modes. Then remove the batteries. 3. let the camera sit for approx. 5 to 10 minutes 4. Re-insert the card and a fresh set of batteries or an AC adapter 5. Test the camera I hope this will solve your problem.