-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said: | Hi All, | | I had some questions .Probably a stupid question but I really want to know how | neo should work ,rather behave in such scenarios. | | Scenario 1: | 1)when the neo is connected to charger/USB and the battery is taken out - | should the neo shut down or is it supposed to remain ON and if ON how long is | it supposed to be ON? | | Actual behaviour right now: | | I have 2 phones and connected them to the charger with the battery out - -One | phone shuts down in a minute and the other stays ON for an hour or so.Not sure | which one of these is the expected behaviour. | Should these phones remain ON with just the charger or should it shut down?
It matters if you have A5 or A6+ revision of GTA02 for this. The A6 and onwards have 47u capacitor smoothing an internal net called VB_SYS, it means that it can better ignore short term power drains. A5 has a smaller cap and can experience more trouble. When the battery is present, it acts as a giant capacitor and provides the necessary power. When it's absent it exposes the shakiness of just the VB_SYS cap. In Qi bootloader recently there are some improvements about this and it seems it can be a little more reliable to operate without battery. But generally, GTA02 wants a battery in it for normal operation especially --> | Scenario 2: | 2)When the battery is out and phone is ON with just the charger, can we make | phone calls or use the device as a regular phone?(like make outgoing/incoming | calls) | | Actual behaviour right now: | | As right now we cannot use the phone for calls/messages when connected to just | the charger without the battery. No this will definitely not work... the GSM side stuff is directly connected to the battery and does not get reliable power there when there is no battery. - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkk89mkACgkQOjLpvpq7dMo3mwCgk7CD3Ug/D8FiK8ov1y1pHQx2 CbAAmgJUVED55ooZZkRe9h7Rod0DVyYE =0En6 -----END PGP SIGNATURE----- _______________________________________________ devel mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/devel
