Can't open the trunk 1998 camry

SOURCE: Replacing a rear seat belt in a 1998 Toyota Camry

if its centre belt remove rear seat to undo bolt out side one remove cover on upper belt to expose bolt

SOURCE: trunk jammed, driver side latch wont' work, keys wont work

THERE MAY BE A ROD THAT GOES FROM THE KEY TO THE LATCH, IF THAT HAS DROPPED OFF ON ONE END YOU CAN TURN THE KEY ALL YOU LIKE BUT IT WILL NOT OPEN THE TRUNK.
UNDO THE BOLTS HOLDING THE LATCH IN PLACE AND OPEN THE TRUNK, IF THE TRUNK LID HAS LINING ON THE INSIDE IT WILL HAVE TO BE REMOVED TO GAIN ACCESS TO THE KEY AREA FOR INSPECTION AND REPAIR.
HOPE THIS HELPS

SOURCE: 1996 toyota corolla car trunk won't open with key or lever

You have a very common problem. There is a lot of dirt and corrosion in your keyway on the trunk lock. The best help I can offer you is to lube it VERY liberally with WD-40, and slide the key in and out whilst spraying and wiping off the dirt. This may help you out.

SOURCE: my lever wont open my gas door....help i

Hello. Here is what I need you to do:

Have someone pull the gas door release. With a credit card, or something like it, popsicle stick, nail file, etc, insert it at the side of the door that opens, not the hinged side. While your assistant is pulling the lever, see if you can manually pull the door open. If it opens, you have a broken fuel door spring. Toyota parts depts sell them for 3 dollars. The spring is there to "pop" the door open, when you pull the lever. If it is broken, and they break rather often, it needs replaced.

SOURCE: The trunk of my 1994 Toyota Camry will not open.

So the problem is the cylinder for the key will not turn and disengage the lock nor does the driver side release lever.

I recommend bringing the vehicle to a repair shop. This repair procedure is tricky and whom ever gets the job has to remove the rear seats to get into the trunk to get the trunk open.