Unfortunately both T-Mobile and Motorola confirm that a number of Sidekick Slides may experience power cycling issues and have decided to suspend sales of the popular model until they find the source of the problem and a fix can be implemented. You would think that a phone that sports a sliding display would have been thoroughly tested before being released.
Owners that are affected by the mysterious gremlin can call T-Mobile or head over to a local dealer to discuss their options. T-Mobile did not state what those options might be, but I would suspect you may be able to trade in your Slide for an LX or ID.
Official statement below;
?T-Mobile USA suspended sales of the T-Mobile Sidekick Slide[TM] on Friday evening, Nov. 16, after Motorola - the manufacturer of the device - confirmed that some devices may inadvertently power off when the slide door on the front side of the phone is opened or closed.
T-Mobile has taken this action to help ensure our customers only receive devices we're confident will perform at their peak, so they can stay effortlessly connected to those who matter most.
Motorola is currently working to identify the root cause of the power cycle issue in affected Sidekick Slide devices. The T-Mobile Sidekick LX[TM] and Sidekick iD[TM] are not affected by this issue.
If a customer purchased a Sidekick Slide that is experiencing the unintended power cycle issue, they may contact T-Mobile Customer Care, or go to a T-Mobile retail store, for assistance and to discuss available options.?
Source Endgadget