[bmb2n]

128MB upgrade in general is not for everyone. Removing and soldering of new memory chip requires lot of knowlege and proper tooling. The 128MB XIP allows the O/S to utilize memory beyond 64MB. This XIP however is backward compatible with 64MB.

The 19209 XIP works well with 19209 SYS. I flashed it on my phone for a few weeks now. It's newer and also officially released. 19701 XIP is also released. I'll give it a try once I get my hand on the 19701 SYS.