A collection of historical timetables from the early days of railways in India to the recent past.
These timetables have been generously provided by various IRFCA members. See acknowledgements.
All timetables will open as PDF in a new browser tab. Many files are large (~50MB), please allow time to load.
You do need a SIM card to unlock a bootloader. The primary requirement is a data connection (Wi-Fi is sufficient) for the initial "OEM Unlock" toggle check, and a USB cable/PC for the final unlocking commands.
But what if you don’t have a SIM card? Maybe you’re using a Wi-Fi-only tablet, testing a second-hand phone, or simply don’t want to insert a SIM. This guide walks you through methods to unlock the bootloader without a SIM card. how to unlock bootloader without sim card
Download and install the specific USB drivers for your phone manufacturer (Google, Motorola, OnePlus, etc.) on your computer so it can communicate with the phone in fastboot mode. You do need a SIM card to unlock a bootloader
Unlocking the bootloader via any method automatically triggers a factory reset. Back up your essential data before executing any commands. Maybe you’re using a Wi-Fi-only tablet, testing a
If you are using a phone without a cellular plan, a tablet without a SIM slot, or a device from a brand like Xiaomi that mandates SIM verification, this requirement can halt your progress. Fortunately, depending on your phone's manufacturer and chipset, there are several verified methods to bypass the SIM card check and unlock your bootloader successfully. Understanding Why Manufacturers Require a SIM Card
Before proceeding, you must be aware of the irreversible consequences of unlocking your bootloader.
Some older MIUI versions allowed binding over Wi-Fi if you used a VPN set to a specific region (like China or India).
More historical timetables can be found on the IRFCA Photo Gallery.