Samsung stop providing security update for M51?Device still running on july security patch.

Samsung M51 is still running on December security patch, no security and no major updates received from jan 2021

What issue with Samsung, not provide Security patch update, till Device working on September security patch

Samsung S7 Will Got Oreo Update?Which Date?

I have samsung s7 mobile, Restarting and hanging issues in my mobile are very much, Once I showed up in the service center, but they just did not fix the problem by updating the software.Right now my phone is the warranty.any solution for this?