Hi everyone!
I could use some advice on a problem I'm having with my Switch OLED not booting into OFW. When I boot into OFW using vol +/- or reboot -> OFW it goes straight to a black screen. The screen looks turned off and is not blue, nor is there a backlight of any kind. Just seems dead. It boots perfectly fine to CFW (SYSNAND) and CFW (EMUMMC) using the HATS pack. I tried searching the forums, but couldn't find a problem exactly like mine, I apologize in advanced for a long explanation.
A little background on the things that occurred:
I have modded several OLEDs (5 at this point), and have all the gear: microscope, good hot air station, and soldering iron. Unfortunately this time many things went horribly wrong. It started out with my emmc being hynix (only dealt with samsung so far), and then I accidentally lifted the RST point during installation (was modding this at 2am...not a good idea). To restore the RST point, I scraped a small trace coming from RST and attached a wire to it, without connecting it to the resistor (attached a picture below from a another post on these forums). The diode value on B point was reading 2.9V. I tried to boot the switch, the chip would blink yellow/green and never go into training mode.
I decided to experiment further and measured the value of the B point while the chip was on by placing a black prong on the CPU shield, and the red prong on the B point located on the HWFLY. It measured at 2.4V when it was turned on...and if I kept the prongs on the B point it would begin to train...and sometimes boot into OFW and other times boot into hekate. During one of the hekate boots, I decided to dump boot0/1 and the rawnand while I had the chance. I then connected the RST point on the board to the resistor, ran a new wire to point B on the chip and everything was successful: I could boot into hekate with very slow boot / glitching times, around 20s. I tried to boot to OFW after that, and it was a no go. Black screen.
I have read in several places that it could be my hynix emmc being the problem. I decided to replace my nand and give myself an upgrade at the same time. Purchased a brand new samsung 256GB and following another wonderful guide from this community, installed it on my switch. Unfortunately, I am still unable to reach OFW. Black screen every time. Everything else works fine though, including the switch showing 256GB emmc in console info and inside the settings menu.
I know this was a long thread, and I apologize again, but I could really use some expert advice.
Thank you all.
I could use some advice on a problem I'm having with my Switch OLED not booting into OFW. When I boot into OFW using vol +/- or reboot -> OFW it goes straight to a black screen. The screen looks turned off and is not blue, nor is there a backlight of any kind. Just seems dead. It boots perfectly fine to CFW (SYSNAND) and CFW (EMUMMC) using the HATS pack. I tried searching the forums, but couldn't find a problem exactly like mine, I apologize in advanced for a long explanation.
A little background on the things that occurred:
I have modded several OLEDs (5 at this point), and have all the gear: microscope, good hot air station, and soldering iron. Unfortunately this time many things went horribly wrong. It started out with my emmc being hynix (only dealt with samsung so far), and then I accidentally lifted the RST point during installation (was modding this at 2am...not a good idea). To restore the RST point, I scraped a small trace coming from RST and attached a wire to it, without connecting it to the resistor (attached a picture below from a another post on these forums). The diode value on B point was reading 2.9V. I tried to boot the switch, the chip would blink yellow/green and never go into training mode.
I decided to experiment further and measured the value of the B point while the chip was on by placing a black prong on the CPU shield, and the red prong on the B point located on the HWFLY. It measured at 2.4V when it was turned on...and if I kept the prongs on the B point it would begin to train...and sometimes boot into OFW and other times boot into hekate. During one of the hekate boots, I decided to dump boot0/1 and the rawnand while I had the chance. I then connected the RST point on the board to the resistor, ran a new wire to point B on the chip and everything was successful: I could boot into hekate with very slow boot / glitching times, around 20s. I tried to boot to OFW after that, and it was a no go. Black screen.
I have read in several places that it could be my hynix emmc being the problem. I decided to replace my nand and give myself an upgrade at the same time. Purchased a brand new samsung 256GB and following another wonderful guide from this community, installed it on my switch. Unfortunately, I am still unable to reach OFW. Black screen every time. Everything else works fine though, including the switch showing 256GB emmc in console info and inside the settings menu.
I know this was a long thread, and I apologize again, but I could really use some expert advice.
Thank you all.
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CleanShot 2023-01-04 at [email protected]1.3 MB · Views: 123