I'm running version 5.0.2.6 on my S2. What's the newest version?
5.0.2.6 is the oldest. Newer versions, I think is 6.0.2.5. That depends on who made it. I've seen different versions. You could flash it from rom manager I think. Just make sure you select the one for the T-Mobile galaxy s2. But you would still have to Odin the older one first when you reroot until I can find a newer one to use in Odin. I'm going to try to do that tomorrow and put on my root guide. You can also flash this twrp recovery.
SGH-T989_TWRP_v2.2.2.0.zip
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