SZ 5.2 AP upgrade fatal error (TSB-2020-002)
SummaryA problem has been discovered for certain models of AP that are upgraded to SZ 220.127.116.11.685, causing them to become unresponsive after reboot.
QuestionWhat can cause certain models of AP to become unresponsive after upgrade to SZ 18.104.22.168.685 and subsequent reboot?
Customer EnvironmentUpgraded to SmartZone 22.214.171.124.685.
Root CauseRuckus R320 u-boot environment variables were changed in ODM manufacturing process and resulted in incorrect CRC (Checksum). As a result, the R320 will not boot up given the incorrect u-boot environment variables after upgrading to SZ5.2.
SymptomsAPs are unresponsive after controller upgrade to SZ 126.96.36.199.685, AP zone migration, and subsequent reboot.
WorkaroundRefer to TSB2020-002 attached below.
ResolutionRefer to TSB 2020-002 attached below.
After controller upgrade to 5.2, apply AP patch scg-ap-188.8.131.52.5030.patch from KBA-10275 found Here, before moving 802.11ac Wave1 model APs to 5.2 zone.
April 01, 2020 11:39 AM (7 months ago)
Answer Attachment 1