Unhappy Unlocked T-Mobile MDA Compact II crashes, plz hhelp?

My T-Mobile MDA Compact II (Charmer) crashes at any program.

ROM version : 2.6.2.27wwe
ROM Date : 09 Mar 06
Radio Version : 02.19.21
Protocol Version: 4.1.13.09
ExtROM Version : 2.6.2.110

WM v5.0 OS 5.1.195 (Build 14847.2.0.0)

It is already unlocked and I'm using Hutch Sim card in it.
I've purchased this device yesterday already unlocked by its previous owner.

It works fine when in FLIGHT MODE or Without SIM card.
With my Hutch card its very difficult to Turn ON the device, and if Turned ON with SIM crashes at anytime.

Without SIM or in FLIGHT MODE it works good.
Once Turned OFF with SIM support it's very difficult to Turn ON.

Plz help me on this.