Some Cingular customers have noticed that the Treo 650 acts strangely when paired with the Gemplus 64K SIM cart. Cingular recently confirmed there is an interoperability issue, and estimates that about 25% of the Treo 650s bundled with the Gemplus card shows the following issues after being activated over the air.
- Keyboard and Screen lockups
- Garbled Voice Mail retrieval number
- Treo Power Cycles on its own
Until a permanent solution is found, Cingular recommends that new customers activate the Treo 650 using Axalto 64k SIMS, or any 32K SIMS. Exisiting customers should contact Cingular to get a new SIM card.
The Gemplus SIM card can be identified by a "G" after the 5 digit SKU on the back. The Axalto card has an "A".
Discuss here "Do you have an Cingular Axalto 64K SIM?", "If the Axalto SIM doesn't fix your resets, read this".
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