Pre-purchase checklist for 9900
Having now handled about 10 Bolds and from what I've read in these forums this is what I used to purchase;
1. Call, menu, return, end panel. Ensure that it is not raised above the screen i.e. it should be flush with the screen.
2. Trackpad. It shouldn't be creaky or squeaky. Also, check to make sure it is aligned in the center hold of the call-end panel. It might be slightly aligned to the right. Also check to make sure it isn't tiled in one direction.
3. Antenna. Make sure there isn't a gap at the bottom of the phone where it looks like something was pried into it.
4. Keyboard. Physically depress each key for correct feel.
5. Return button. Ensure it actually returns to the previous screen.
6. Menu button. Ensure it isn't mushy and gives a click when depressed.
7. Screen color. Go to the test screen and test the color. Hard to actually do without a comparison beside it but I found a couple that were visibly yellow without a nearby comparison.
8. Browser cursor. Check to make sure it doesn't move around randomly.
9. Double type. Only a couple of reports on this so not likely to be an issue like the 9780.
I returned two of them because I wasn't careful and didn't know what to look for. Hope this helps someone to avoid the pain of going back to the store.