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Варвара Кошечкина (редактор отдела оперативной информации)
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See Development below.。关于这个话题，WPS官方版本下载提供了深入分析
The idea was that system, odm, and vendor partitions could be updated independently, and if an update fails, the phone reboots using a dual partition _b if _a failed, and vice-versa.