My wife and I both have Galaxy Mega phones. My wife likes this size because it doesn’t get lost so easy in her purse plus the larger screen. I was to inherit her old phone.
The issue is the 19205 will not indicate level of charge and will eventually turn off due to dead battery. No warning. Battery life on both phones seems to be excellent.
It seems to me charger circuit is working fine. I have tried clearing the memory and rebooting the phone. I have tried reflashing firmware with Odin.
I performed the following tests:
1. Charged battery in 19205 Galaxy Mega Android with 4.2.2 until charge led changed from red to green. Using test code *#0228# voltage reading for battery A was 5018 mv, Level 100%, Level Blocks 7 (0-7)
2. On the other phone, the partially discharged battery in 19200 Galaxy Mega Android with 4.4.4. Voltage for battery B was 3880.0, Level 65%, Level Blocks 6 (0-8)
3. Took charged battery A from 19205 and installed in 19200, The 19200 now reads Voltage 4156, Level 98%, Level Blocks 8 (0-8)
4. Installed battery B from 19200 into 19205 and readings are Voltage 5018, level 100%, Level Blocks 7 (0-7)
5. Charged battery B from 19200 in 19205 until green fully charged led came on. Voltage reading were now 5018, Level 100% Level Blocks 7 (0-7)
6. After charging battery B in 19205 until green led comes on, took battery out and measured with VOM. I got 4.35 volts.
Question seems to be how does one calibrate the voltage reading in the phone to the actual voltage of the battery. The charger circuits seems to be independent of the screen display.
The issue is the 19205 will not indicate level of charge and will eventually turn off due to dead battery. No warning. Battery life on both phones seems to be excellent.
It seems to me charger circuit is working fine. I have tried clearing the memory and rebooting the phone. I have tried reflashing firmware with Odin.
I performed the following tests:
1. Charged battery in 19205 Galaxy Mega Android with 4.2.2 until charge led changed from red to green. Using test code *#0228# voltage reading for battery A was 5018 mv, Level 100%, Level Blocks 7 (0-7)
2. On the other phone, the partially discharged battery in 19200 Galaxy Mega Android with 4.4.4. Voltage for battery B was 3880.0, Level 65%, Level Blocks 6 (0-8)
3. Took charged battery A from 19205 and installed in 19200, The 19200 now reads Voltage 4156, Level 98%, Level Blocks 8 (0-8)
4. Installed battery B from 19200 into 19205 and readings are Voltage 5018, level 100%, Level Blocks 7 (0-7)
5. Charged battery B from 19200 in 19205 until green fully charged led came on. Voltage reading were now 5018, Level 100% Level Blocks 7 (0-7)
6. After charging battery B in 19205 until green led comes on, took battery out and measured with VOM. I got 4.35 volts.
Question seems to be how does one calibrate the voltage reading in the phone to the actual voltage of the battery. The charger circuits seems to be independent of the screen display.
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