Multi-boot hack is one of the oldest known mods in the Android custom ROM community. And Multi-boot is back with a bang as you can now seamlessly boot two separate operating systems on OnePlus 7, OnePlus 7 Pro and OnePlus 7 Pro 5G with a new modified TWRP.

oneplus 7pro

OnePlus devices have been developer-friendly since the very first model – the original OnePlus One. It has been almost six years since its release but still, it is being supported by enthusiastic developers. Thanks to this, the six-year-old phone can boot Android 10 even after the company officially dropped support a long time back. 

Over the past few years, there hasn’t been any significant development with regard to multi-boot on Android. But now, XDA recognized developer Zackptg5 has come up with a modified TWRP for the OnePlus 7, OnePlus 7 Pro, and OnePlus 7 Pro 5G, which enables true multibooting (never seen before) on them exploiting the A/B partition. 

By using this recovery, interested users can now dual-boot two separate ROMs on the above-mentioned OnePlus devices by using the two separate userdata partition (A/B) for each ROM. Furthermore, the modded TWRP also lets users try A/B/C partition, where the ‘C’ data partition accommodates common data for the two different ROMs.

It is worth noting that repartitioning the stock partition layout is not advisable for everyone. Since getting back to the stock partition is always a risky job, you must know how to unbrick your device before proceeding with this dual-boot hack.

 

(Source)