tadaspik
Newbie
Hello guys - i want to re-new an issue discussed here few years ago.
i have purchased this shield https://ae01.alicdn.com/kf/HTB1_QUT...odule-For-arduino-Compatible-High-Quality.jpg - it works fine evetn with LM2596
Few months later iv'e purchased 6 more of them and all shields has the same behavior - they shuts down on network registration.
First of all i thought this is power issue, so i bought LM1085IT-5.0 module, and made power supply (connected it with 10 uf tantulum and simple cap) - same thing.
Then i connected modem directly to 18650 lipo cell battery - same behavior.
I even updated firmware of a modem - result is that modem shuts down faster.
Guys i need help, i have 6 modems in shelf worth 70 eur total that i cant use
i have purchased this shield https://ae01.alicdn.com/kf/HTB1_QUT...odule-For-arduino-Compatible-High-Quality.jpg - it works fine evetn with LM2596
Few months later iv'e purchased 6 more of them and all shields has the same behavior - they shuts down on network registration.
First of all i thought this is power issue, so i bought LM1085IT-5.0 module, and made power supply (connected it with 10 uf tantulum and simple cap) - same thing.
Then i connected modem directly to 18650 lipo cell battery - same behavior.
I even updated firmware of a modem - result is that modem shuts down faster.
Guys i need help, i have 6 modems in shelf worth 70 eur total that i cant use