The 3.3v to NAND only draw 90mA. So the power is directly from the u-Link NAND. Program the openWRT on MR33 only need to replace the u-boot (2012 version) and ubi. The process is easy and fast.(about 10 min) ... https://www.youtube.com/watch?v=8nCkiAG1Dsw
SB5102 uses SPI flash. The ISP pin (pin 9) needs to pull high.
Regular 120V power applies. One side cable to solder to the J303.
The programming is simple and fast since it only has 2M of flash.
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https://www.youtube.com/watch?v=6b7fOHBssOY
This ECM uses MC68377 CPU. The flash is 1M AM29BL802C.
There is no need to pull WP pin as with ECM411.
The definition is the similar as 411. The E40 target will be in the future release of software. If you need it in 1.18or previous release, email me and I will send you the definition file.
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https://www.youtube.com/watch?v=F4dVJ0HKI94
Updated version for USB JTAG NT software install on Windows 10.
USB JTAG NT software supports all the hardware (u-Link NT, u-LinK NAND,USB JTAG NT,USB BDM NT).
Download software @ usbjtag.com. Do not forget install the driver or it will show "usb not connected".
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https://www.youtube.com/watch?v=wm9fwfnDX28
When modem is bricked and cannot be detected with JTAG use this method to program. This is hard brick and needs special trick to program.
Original video is avi format can be downloaded from the www.usbjtag.com Convert to MP4 for better viewing experience. The new NT software looks different than this one but the concept is the
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https://www.youtube.com/watch?v=XBsREdxvEHQ
Recover a dead E78 with boot mode. Password is required from the shadow memory. Can bus speed is 200Khz/s. About four minutes to program the entire flash.
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https://www.youtube.com/watch?v=1ObvHUMoBgg
u-Link NT can be a very useful tool (even in production line) to program Atmega chip. In this example u-Link program Atmega 328 and Atmega2560
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https://www.youtube.com/watch?v=MjCC_LbdfKk
USB JTAG NT now works with CyUSB driver (which is signed). It will work with most of the Windows today. Here is a video on Windows 10. Windows 8.1 will work the same way.
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https://www.youtube.com/watch?v=Mb_yWdAeKVU