Stick up cam gen3 failing on setup

I left my Stick Cam 3 for a month disconnected from my wifi network due to drained battery. After charging the battery and inserting it back to the Stick up cam3, the Ring App can not detect the Stick up cam, so I followed the steps of setting up the device, I followed the steps but it keeps on failing on this part, as displayed on my ring app, "Unable to join the network "Ring Setup 3e", the blue light in front of the stick up cam3 is just blinking. I also followed the recommendation to manually register the Iphone unit to the Stick Up Cam internal Wifi AP, but when I tried that I can't see the Wifi AP "Ring Setup 3e", I also tried the recommendation of pressing the orange botton for 20 seconds todo a factory reset, the device LED blink red for a couple times then it blink blue and it stop blinking.... Then I followed same procedure again on first time setup of the device, but unfortunately it is still unsuccessful...I need help... don't know what to do anymore...I tried almost every day for almost 2 weeks now....I have two same ring stick up cam model, but I did not have this problem.... same also, battery was drained for almost a month but upon charging and following the steps of first time setup it registered successfully and still working up to now.Thanks in advance