Here's what I've done.
Huawei E5220s-2 (globe postpaid Sim)
All lights were blinking (slow) and the PC cannot detect the Modem.
Download:
1. Huawei Modem Flasher -
http://www.fr3nsis.it/2014/02/24/huawei-modems-universal-flasher/
2. Firmware from -
http://www.huawei-device.co.za/support/software (i used the E5220s-2 - Cell C - from Africa, Kung sino meron firmware from Globe na file, please share, thanks
)
Procedure:
While the modem is off, press and hold the Reset Button then press and hold the Power Button.
All lights should be flashing fast now. Plug the modem to the PC (download drivers when needed), Open Huawei Modem Flasher, extract/select the firmware,
change Ports if needed, Flash the modem - Resurrect Mode. Plug your SIM, go to and change the APN settings.
Hope this works for all.
Thanks