Help with part for SM-N900T or SM-N900A

[ffp2]

1) I have phone that was water damaged on couple parts (The water detection stickers are intact on cell phone and inside under main board, except on battery have half red)
I was cleaning board and one tiny resistor was burned/unsoldered well it come off and I was not able to measure it. It is R710 (look for SIM600 top) you can see on schematic. SM-N900A-TSHOO-7 (you can fine in google or other search engine)
My Phone is SM-N900T and it look exactly as SM-N900A (I guess the hardware is same but software might be different)

2) Also the screen does not come on. Anyone knows how to test it and is there a way to find if it’s digitizer or board?

[ffp2]

Some how above post habe black letters so reposting:

1) I have phone that was water damaged on couple parts (The water detection stickers are intact on cell phone and inside under main board, except on battery have half red)
I was cleaning board and one tiny resistor was burned/unsoldered well it come off and I was not able to measure it. It is R710 (look for SIM600 top) you can see on schematic. SM-N900A-TSHOO-7 (you can fine in google or other search engine)
My Phone is SM-N900T and it look exactly as SM-N900A (I guess the hardware is same but software might be different)

2) Also the screen does not come on. Anyone knows how to test it and is there a way to find if it’s digitizer or board?

No one have those phones? and can not measure R710?

Any body know is voltage across C622 should be exeactly 3 volts? I have there same voltage as battery if Battery 4V I get there 4V and if I ohm-out it look like connected directly to the battery terminals??? or chip shorted (U606 "MAX77804")