G935F Frp and cable 525k resistor - GSM-Forum

CIP&CIOP · 07-20-2017, 10:59

Hello. I updated to the latest octoplus box software version and now to make FRP operation the box asks for UART cable 525k.
In my box I have 2 microusb UART cables
1) a cable has 530k resistor and does not recognize the phone
2) Another cable does not have resistor label, I tried and did not recognize the phone.

How can I do via usb as I did with previous versions?

log - [Click to open]

Octopus box · 07-20-2017, 12:09

Hello.

New method requires micro UART cable with 525K resistor for connection.
To remove FRP lock via USB You can use "Reset FRP" operation, but it requires ADB to be enabled. To enable ADB You need to write "boot.img" partition of Combination firmware.

CIP&CIOP · 07-20-2017, 15:33

Can I have a scheme to build the cable? I got the 525k resistor

Octopus box · 07-20-2017, 15:39

Pinout/scheme of cable is available in phone Software manual - press "Help" button in Software and go to "2. Cables for connection" section.

mariodepomi · 12-14-2017, 21:54

Hi
What is the tollerance for the 525k resistor? (1% 5% 10%?)
Thanks

Octopus box · 12-15-2017, 09:14

Hi.

It is necessary to use exact value.

07-20-2017, 10:59	#1 (permalink)
CIP&CIOP Freak Poster Join Date: Dec 2006 Location: POMPEI Posts: 246 Member: 405174 Status: Offline Thanks Meter: 18	G935F Frp and cable 525k resistor Hello. I updated to the latest octoplus box software version and now to make FRP operation the box asks for UART cable 525k. In my box I have 2 microusb UART cables 1) a cable has 530k resistor and does not recognize the phone 2) Another cable does not have resistor label, I tried and did not recognize the phone. How can I do via usb as I did with previous versions? log - [Click to open] Welcome to Octoplus/Octopus Box Samsung software version 2.5.6 ----------------------------------------------------------------------------------- To connect SM-G935F phone you have to perform the following steps: 1. Disconnect USB cable from phone. 2. Go to Menu->Settings->More->About Device. 3.Tap on "Build number" 7 times to enable developer options. 4. Go to Menu->Settings->More->Developer options. 5. Turn on "USB Debugging" option. Connecting to server.. Username: Authorization.. Login error: Wrong username! Performed by 2.5.6 Software version. Selected interface: USB Searching for device. Please wait... Waiting for device... Found device on COM92 Reading info... Detected device model: SM-G935F HW Version: SM-G935FZDAITV PDA version: G935FXXU1BPJG CSC version: G935FITV1BPJ1 CP version: G935FXXU1BPJG Device SN: R58H60XK5QB Device IMEI: 357330-07-036840-2 FRP/Reactivation: TRIGGERED Connecting to server.. Username: Authorization.. Login error: Wrong username! Performed by 2.5.6 Software version. Connecting to server.. Username: Authorization.. Login error: Wrong username! Performed by 2.5.6 Software version. ----------------------------------------------------------------------------------- Platform: Samsung Android Selected port: COM1 Selected model: SM-G935F Please put the phone into Download Mode and connect USB cable. Waiting for phone... Reading PIT... PIT was read successfully. Searching for UART interface.. COM6 Connect Samsung Micro UART cable(with 525K resistor), press and hold "Vol-" + "Power" buttons for 15-20 seconds Searching for device. Please wait... Operation was canceled Performed by 2.5.6 Software version. ----------------------------------------------------------------------------------- Platform: Samsung Android Selected port: COM1 Selected model: SM-G935F Please put the phone into Download Mode and connect USB cable. Waiting for phone... Reading PIT... PIT was read successfully. Searching for UART interface.. COM6 Connect Samsung Micro UART cable(with 525K resistor), press and hold "Vol-" + "Power" buttons for 15-20 seconds Searching for device. Please wait...

07-20-2017, 12:09	#2 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	Hello. New method requires micro UART cable with 525K resistor for connection. To remove FRP lock via USB You can use "Reset FRP" operation, but it requires ADB to be enabled. To enable ADB You need to write "boot.img" partition of Combination firmware.

07-20-2017, 15:33	#3 (permalink)
CIP&CIOP Freak Poster Join Date: Dec 2006 Location: POMPEI Posts: 246 Member: 405174 Status: Offline Thanks Meter: 18	Can I have a scheme to build the cable? I got the 525k resistor

07-20-2017, 15:39	#4 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	Pinout/scheme of cable is available in phone Software manual - press "Help" button in Software and go to "2. Cables for connection" section.

12-14-2017, 21:54	#5 (permalink)
mariodepomi Freak Poster Join Date: Jul 2012 Posts: 163 Member: 1784601 Status: Offline Thanks Meter: 21	Hi What is the tollerance for the 525k resistor? (1% 5% 10%?) Thanks

12-15-2017, 09:14	#6 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	Hi. It is necessary to use exact value.