Download the firmware for the GALAXY Win GT-I8552B with product code CHO from Chile. This firmware has version number PDA I8552BUBUANF1 and CSC I8552BUUBANF1. The operating system of this firmware is Android 4.1.2 , with build date Fri, 13 Jun 2014 18:13:04 +0000. Security patch date is N/A, with changelist 1550554.
AP (System &Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC_*** (Country / Region / Operator)
HOME_CSC_*** (Country / Region / Operator)
Other options in case first option did not work or isn't possible.
Option 2 VOLUME DOWN + VOLUME UP than USB cable
Option 3 POWER + VOLUME DOWN + VOLUME UP
Option 4 POWER + VOLUME DOWN + HOME BUTTON
Option 5 (Note9) USB cable + VOLUME DOWN + BIXBY
AP (System &Recovery)
Other options in case first option did not work or isn't possible.
Option 2 VOLUME DOWN + VOLUME UP than USB cable
Option 3 POWER + VOLUME DOWN + VOLUME UP
Option 4 POWER + VOLUME DOWN + HOME BUTTON
Option 5 (Note9) USB cable + VOLUME DOWN + BIXBY
For most devices, the model number (e.g. "GT-I9505" or "SM-G900F") is found inside the device. It becomes visible when you open your device and remove the battery.
As an alternative, you can also type your model name (e.g. "GALAXY S5") instead of the number. But it may be a bit more difficult to find your specific device that way.
Still not sure? Then perhaps Samsung can help you out with their model number lookup tool.