关于我把手机字库整没了，因为在保，小米直接保修帮我换了主板这档事
I erased the phone’s firmware, but since it was under warranty, Xiaomi replaced the motherboard for me for free
我不小心给我的 Redmi Note 11T Pro （联发科 Dimensity 8100）刷入了错误的 preloader，砖了（表现为反复重启，进不去 recovery 与 fastboot）。
I accidentally flashed a wrong preloader to my Redmi Note 11T Pro (with a Mediatek Dimensity 8100 SoC), which bricked my phone. I kept rebooting and couldn't enter Fastboot or Recovery.
好在这个 preloader 是 engineering preloader，它在启动时会暴露一个不需要授权的 VCOM 端口，可以用来救砖什么的。我打开了 SP Flash Tool 准备救砖，
Fortunately, the preloader I flashed was a engineering preloader, which exposes a unauthenticated VCOM port, thus SP Flash Tools is available for the recovery process.
我傻逼的地方来了，之前更新系统之后到了 B 槽忘记切换或 A 槽了。这时就算用完整线刷包刷一遍也大概率没用的，必须得抹掉闪存再刷。问题是抹掉之前没有备份字库...
Here comes the part where it was really stupid of me, I have forgotten to switch back to B slot after performing an OTA. At this point, even reflashing with the complete fastboot package would likely be ineffective; a full flash erase was necessary. The issue was that I didn’t back up the firmware before erasing…
然后手机成功地启动失败了。因为 seccfg 也被抹掉了，此时 Bootloader 已重新锁定。再次重启进入 Recovery，显示「NV 数据已损坏」。寄。
Then, the phone failed to boot. Since the seccfg partition was also erased, the bootloader relocked itself. Upon restarting, it entered Recovery mode, displaying “NV data is corrupted.”
有趣的是，这个时候重启到 Fastboot 模式下，可以用小米解锁工具直接解锁。
Interestingly, I was able to unlock the Bootloader directly using Mi Unlock Tool under Fastboot.
最后我把手机送修，小米打了个电话告诉我要换主板，会丢数据。然后因为保修还剩3个月，免费。
I sent my phone to after sales for repairing. Xiaomi contacted me to inform that they have to replace a motherboard which will result in data loss. I argeed. However, since there were still three months left on my warranty, the service was free of charge.
感谢小米（
#Xiaomi #Bootloader #Warranty
I erased the phone’s firmware, but since it was under warranty, Xiaomi replaced the motherboard for me for free
我不小心给我的 Redmi Note 11T Pro （联发科 Dimensity 8100）刷入了错误的 preloader，砖了（表现为反复重启，进不去 recovery 与 fastboot）。
I accidentally flashed a wrong preloader to my Redmi Note 11T Pro (with a Mediatek Dimensity 8100 SoC), which bricked my phone. I kept rebooting and couldn't enter Fastboot or Recovery.
好在这个 preloader 是 engineering preloader，它在启动时会暴露一个不需要授权的 VCOM 端口，可以用来救砖什么的。我打开了 SP Flash Tool 准备救砖，
Fortunately, the preloader I flashed was a engineering preloader, which exposes a unauthenticated VCOM port, thus SP Flash Tools is available for the recovery process.
我傻逼的地方来了，之前更新系统之后到了 B 槽忘记切换或 A 槽了。这时就算用完整线刷包刷一遍也大概率没用的，必须得抹掉闪存再刷。问题是抹掉之前没有备份字库...
Here comes the part where it was really stupid of me, I have forgotten to switch back to B slot after performing an OTA. At this point, even reflashing with the complete fastboot package would likely be ineffective; a full flash erase was necessary. The issue was that I didn’t back up the firmware before erasing…
然后手机成功地启动失败了。因为 seccfg 也被抹掉了，此时 Bootloader 已重新锁定。再次重启进入 Recovery，显示「NV 数据已损坏」。寄。
Then, the phone failed to boot. Since the seccfg partition was also erased, the bootloader relocked itself. Upon restarting, it entered Recovery mode, displaying “NV data is corrupted.”
有趣的是，这个时候重启到 Fastboot 模式下，可以用小米解锁工具直接解锁。
Interestingly, I was able to unlock the Bootloader directly using Mi Unlock Tool under Fastboot.
最后我把手机送修，小米打了个电话告诉我要换主板，会丢数据。然后因为保修还剩3个月，免费。
I sent my phone to after sales for repairing. Xiaomi contacted me to inform that they have to replace a motherboard which will result in data loss. I argeed. However, since there were still three months left on my warranty, the service was free of charge.
感谢小米（
#Xiaomi #Bootloader #Warranty
