Samsung has sold devices capable of bootloader unlocking, but later restricted it by neglecting their service. Something along that line.
 
 
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== Samsung left the certificate for their one service expired, making older phone incapable of unlocking their boot loader after factory reset. ==
==Samsung left the certificate for their one service expired, making older phone incapable of unlocking their boot loader after factory reset.==
This is basically a nearly incoherent word vomit that I just wanted to get it out there asap before I forgot about it. This is related to the ''"Samsung has sold devices capable of bootloader unlocking, but further restricted it with an update."''  point
This is basically a nearly incoherent word vomit that I just wanted to get it out there asap before I forgot about it. Is related to the ''"Samsung has sold devices capable of bootloader unlocking, but further restricted it with an update."''  point


According to this: https://xdaforums.com/t/seems-like-the-server-samsung-use-to-unlock-rmm-prenormal-is-abandoned-expired-certificate-whats-next-lol.4403393/
According to this: https://xdaforums.com/t/seems-like-the-server-samsung-use-to-unlock-rmm-prenormal-is-abandoned-expired-certificate-whats-next-lol.4403393/
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https://4pda.to/forum/index.php?showtopic=881591&st=3160 (in Russian)
https://4pda.to/forum/index.php?showtopic=881591&st=3160 (in Russian)
https://eu.community.samsung.com/t5/galaxy-a-series/samsung-a5-2017-no-oem-unlock/td-p/5255654
https://eu.community.samsung.com/t5/galaxy-a-series/samsung-a5-2017-no-oem-unlock/td-p/5255654
[[Special:Contributions/45.87.213.229|45.87.213.229]] 13:19, 27 August 2025 (UTC)
[[Special:Contributions/45.87.213.229|45.87.213.229]] 13:19, 27 August 2025 (UTC)
:Samsung has disabled bootloader unlocking on sm-a155f with oneui8 update, a phone which doesn't have any custom rom. It was previously impossible to install anything but official samsung software, now it is impossible to even root it if you updated to oneui8, which my "backup" phone sadly did when connected to internet. Last samsung anything i ever bought. [[Special:Contributions/93.143.7.40|93.143.7.40]] 17:29, 10 May 2026 (UTC)