The Bold 9000 has only 128 MB of flash memory. OS 4.6 leaks memory aggressively – after three days, you’ll get "Low Memory: Please delete apps." OS 5.0’s garbage collector is twice as efficient. A firmware update can recover 15–20 MB of free RAM.
USB power management on Windows. Fix: Disable USB selective suspend in Power Options → Advanced Settings. Also, use a USB 2.0 port (not USB 3.0, which can have timing issues). Firmware Change Update on BLACKBERRY 9000 Bold
The BlackBerry 9000 Bold Go to product viewer dialog for this item. The Bold 9000 has only 128 MB of flash memory
Carriers have refarmed 3G bands. A newer radio file (AMSS) includes updated neighbor cell lists. Users report that after updating to 5.0.0.681, their Bold 9000 connects to modern 3G towers in areas where it previously showed "SOS Only." USB power management on Windows
You might ask: Is this trip necessary for a 15-year-old phone? Emphatically, yes.
: If the device still boots, back up your data using Desktop Manager, as firmware changes will wipe the device. Manual Firmware Update Process Firmware Change/Update on BLACKBERRY 9000 Bold
Hybrids can cause SMS lag or radio instability. Always have a stock firmware installer ready as a fallback.