If you do get new carts, don’t toss the old ones. If you ever need to do an initial fill (for example, if you need to do a power clean on an R3000, the closest method is to do an initial fill), it won’t do it if your batteryless carts are below a certain level. You can always reset a battery chip cart, then do an initial fill.
Of course, IJM will be in a better position to advise you about whether to update your carts or not.
By the way, with the unrecognized carts, I get that once in awhile. Here’s what I’ve discovered:
- make sure you are getting a good voltage (at leat 1 V) accross the reset terminals. If you cannot get enough voltage, check the battery. If the battery is good, clean the electrical contacts of the chip that contact the battery.
- when resetting, sometimes you have to try a few times.