Help! Urgent! Can't get to Phoenix BIOS Recovery

[lazalem]

I have done some changes to my laptop's BIOS. After restarting, it won't POST & the screen is just black. I already removed the CMOS battery but there weren't any changes except for when I turn on the laptop it now turns off automatically after 1 sec. and then after 5 secs. it turns on again but still nothing on the screen.

I tried the Phoenix Crisis Recovery method but it just doesn't work on me. I tried every key combinations (FN/Win + R/F/B/K/ESC) but nothing happens.

After researching for a while, I found my laptop's schematic online and then this shocked me:




It says that the BIOS Recovery is disabled by default. So, what I need from you guys is to tell me what to do to set it to "Low=Enable". Should I just remove the resistor labeled R247 to enable the BIOS Recovery? BIOS_REC is equal to GPIO22

Please help me!

[Stoneage]

I have done some changes to my laptop's BIOS. After restarting, it won't POST & the screen is just black. I already removed the CMOS battery but there weren't any changes except for when I turn on the laptop it now turns off automatically after 1 sec. and then after 5 secs. it turns on again but still nothing on the screen.

I tried the Phoenix Crisis Recovery method but it just doesn't work on me. I tried every key combinations (FN/Win + R/F/B/K/ESC) but nothing happens.

After researching for a while, I found my laptop's schematic online and then this shocked me:




It says that the BIOS Recovery is disabled by default. So, what I need from you guys is to tell me what to do to set it to "Low=Enable". Should I just remove the resistor labeled R247 to enable the BIOS Recovery? BIOS_REC is equal to GPIO22

Please help me!

Did you use the crisis recovery disk? Or did you use a freedos disk?

[cyberpark]

I'm not sure your bios recovery method from the scheme.
but I guess that is for just bios reset as a hardwared jumper, not as bios recovery as you thought.
some machines has removed general phonex bios recovery from the bios like as sony vaio, or asrock as I knew, or somes has changed the key combination for the recovery, as FN/Win + END or something other else.
in worst case as you know, you should replace correct bios chip with heating and solder gun or new motherboard with $$$.

[lazalem]

I have done some changes to my laptop's BIOS. After restarting, it won't POST & the screen is just black. I already removed the CMOS battery but there weren't any changes except for when I turn on the laptop it now turns off automatically after 1 sec. and then after 5 secs. it turns on again but still nothing on the screen.

I tried the Phoenix Crisis Recovery method but it just doesn't work on me. I tried every key combinations (FN/Win + R/F/B/K/ESC) but nothing happens.

After researching for a while, I found my laptop's schematic online and then this shocked me:




It says that the BIOS Recovery is disabled by default. So, what I need from you guys is to tell me what to do to set it to "Low=Enable". Should I just remove the resistor labeled R247 to enable the BIOS Recovery? BIOS_REC is equal to GPIO22

Please help me!

Did you use the crisis recovery disk? Or did you use a freedos disk?

I tried using the phoenix crisis recovery disk method, but it doesn't work. So I did a little research with the laptop's schematics and found out that BIOS recvoery is disabled in hardware.

---

I'm not sure your bios recovery method from the scheme.
but I guess that is for just bios reset as a hardwared jumper, not as bios recovery as you thought.
some machines has removed general phonex bios recovery from the bios like as sony vaio, or asrock as I knew, or somes has changed the key combination for the recovery, as FN/Win + END or something other else.
in worst case as you know, you should replace correct bios chip with heating and solder gun or new motherboard with $$$.

I'm trying to enable the bios recovery through hardware. Enabling the bios reset through hardware jumper is done by shorting SRTC_RST# pin to Ground which is connected directly to the intel chipset.

Don't worry, I opted to buid a Serial Peripheral Interface Programmer to repair my bios chip. So everything is working now. Thanks for your effort to help me at least.

[lazalem]

According to me, it is for only BIOS reset as a hardware jumer.

Nope, I've read the schematics and this is definitely for the BIOS recovery. For the BIOS reset you need to connect the chipset's SRTC_RST# pin to Ground by shorting the jumper pads on the PCB.