Below is the direct link to download the BlackBerry Pearl 8100 OS. Follow the instructions on how to flash this device carefully, I will not take responsibility on whatever may happen to your device. Make sure you are downloading the exact firmware of the device you want to flash because flashing a wrong firmware will make the device completely dead (can’t power on, can’t charge and will not be detected by a computer).
File Name: 8100_18.104.22.168_full_OS
File Size: 22 MB
How To Flash: Follow Instruction
How To Flash
Step 1: Download & extract the OS on your computer.
Step 2: Open the extracted folder, there you will get the firmware of the device.
Step 3: Make sure you install BlackBerry Desktop on your Computer to ensure that the device gets connected (skip this step if blackberry desktop is already installed).
Step 4: Install the OS.
Step 5: After Installing the OS, Make sure you delete vendor.xml file before proceeding.
Step 6: Launch AppLoader and flash your device.
[*] Take a backup: All data on your device gets wiped after flashing so take a backup of your personal data before flashing or installing the new firmware. As this ease you to recover them whenever any thing wrong happens.
[*] Erase OS: It is always advisable to erase the old firmware of the device before installing the new firmware. Learn how to do so by heading to this link How to Erase BlackBerry OS.
[*] Read me: Make sure you read & follow this tips & guides before you completely proceed to flashing your device. These tips are very important to be ignored.