If the webcam is detected as 0c45:6310 and does not work, the webcam firmware is corrupted or erased (the flash was blank on mine).
label: Camellia_2G CN0314-SN30-OV03-5
chip: SONIX SN9C230CJG
flash: MX25L512MC (64KB)
To reflash firmware, get CCD_Suyin_v5.8.33.501_XPX86.zip.
Unzip, run USBBridgeBurnerAp_v1.1.4.0.exe from "Suyin Firmware R02.03.02" folder inside and click the "EZ GO" button.
Wait for flash to complete and power cycle the laptop..
Camera is now detected as 064e:a103 and works fine!
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Almost complete conversion, incuding Radeon removal and working HDMI. The only exception is RT8202A_VGA_CORE which is kept to power VCC_GFXCORE.
("p3" means schematic page 3)
[CODE]p3: move R260 (10K) to R254 - PCLKCLK4 strap
add RN44, RN76 (2x0R) - DREFCLK/DREFCLK# and DREFSSCLK/DREFSSCLK#
p7: remove R162 (0R), add R161 (1K) - CRT_IREF
remove C213 C220 C222 C228 C229 C233 C234 C237 C239 C245 C253 C259 C264 C265 C266 C269 C647 C648 C651 C654 C657 C658 C660 C663 C664 C666 C667 C671 C672 C679 C680 C686
move C593, C591, C587, C583, C559, C554,...
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LCD stopped working again after adding RN30 (I didn't have 150R resistor network before), but this time including backlight. But only in BIOS - LCD turns on when booting Linux. Linux also sees a phantom VGA monitor connected.
The problem is caused by resistance of VGA RGB signals being too low (50 ohms), causing BIOS to detect a fake VGA monitor connected. The low resistance is caused by R569, R570, R572 under Radeon. Removed them and LCD works fine again.
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Found it! Installed RN14 pull-ups for HDMI EDID and LCD now works!
Looks like the BIOS tries to read EDID from HDMI first and when it fails, it does not read EDID from LCD either.
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LCD panel is original - InnoLux BT156GW01 V.2 (40-pin LVDS LED), cable = Wistron JV50 LED+CCD CABLE P/N: 50.4CG14.022 REV:A02
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I've done the conversion on JV50-MV M92 MB (DDR2) because I was getting D2 POST code. If Radeon is not desoldered, you need to remove at least C213/C220 or the system will still detect the Radeon and hang at D2. After that, I got display on VGA port and I can boot! But LCD does not work. Backlight and LCDVDD turn on but the display remains blank.
Booted Linux and there are "[drm:intel_plane_destroy [i915]] *ERROR* Couldn't find PLL settings for mode!" errors in the kernel log during boot and anytime I try to enable the internal LCD (xrandr --output LVDS1 --mode 1366x768)....
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Re: DELL XPS 15-9530 LA-9941P VAUB0 slow charging
Yes, it was another crap. Discharge lasted only 1 hour (with CPU loaded), then charged normally again (voltage rising slowly).
Bought another battery. Looks same as the first one except one sticker - but this one works. And seems to work well - it's charging over 30W and charges up to 13.2V. Looks like it has 4.4V cells.
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Re: DELL XPS 15-9530 LA-9941P VAUB0 slow charging
It worked exactly once. The battery charged to 100% and then I turned off the laptop and disconnected adapter.
Now I powered it up and the battery was only around 10%!
Connected adapter, the voltage rised to about 12.4V, charging power started around 20W and keeps decreasing. Much less than with the first battery, it's now around 11W and battery at 24% but it still does not look right.
Another crappy battery?
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Re: DELL XPS 15-9530 LA-9941P VAUB0 slow charging
Bought the cheapest battery available (only 4400mAh instead of 5500mAh) in a local shop. The connector is very hard to plug but guess what? It's charging!
It was completely discharged (around 8V) but the voltage is slowly rising (currently at 11.35V), Linux shows 22W charing power and percentage rises (currently 10%).
The first "new" battery was clearly bad - high internal resistance. The 12.3 voltage is too high (at the same current) and looks like there's some charging algorithm in EC that...
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Re: DELL XPS 15-9530 LA-9941P VAUB0 slow charging
Charger (bq24715) register 0x12 is set to 0xE4CC, which means fixed IOUT pin with "40x adapter current amplifier output" value. This pin is connected (as ADP_I) to EC. It goes up to 0.6V after plugging, then decreases as charging slows down. 0.6V seems to be OK (0.6V/40 = 0.015V, Rsense=0.01R, I=0.015V/0.01R = 1.5A).
As the current is reduced by a command from EC, it rules out the charger.
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Re: DELL XPS 15-9530 LA-9941P VAUB0 slow charging
Communication works. The battery is reporting charging current 2640mA. EC sets charger to 2640mA but then lowers it to 611mA. Maybe the battery is bad, reporting only 764mA?
[code]
write(2C,00,20,00,2C,5C,00,38)
write(0B,0D)
read(0B,15,00)
write(0B,1C)
read(0B,27,10)
write(0B,2E)
read(0B,27,10)
write(0B,00)
read(0B,88,4D)
write(0B,2E,00,A7)
write(0B,2E)
read(0B,01,00)
write(0B,36,04,42,A8,2C,E4)
write(0B,2D,08,04,00,00,00,00,00,00,00)...
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Re: DELL XPS 15-9530 LA-9941P VAUB0 slow charging
PU202 is not populated. Pins 4 & 5 are connected to PR219 which seems to be OK (zero resistance). Voltage at PR219 is around 22mV (=2.2A), then decreases to 1.3mV (=0.13A). So the current sensing seems to work fine.
Looks like I'll need to look at the SMBus communication.
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DELL XPS 15-9530 LA-9941P VAUB0 slow charging
After plugging the AC adapter (original 130W, detected properly in BIOS) battery starts charging. Battery voltage goes up to 12.3-12.4V but then slowly decreases to 11.5V. Also when the laptop is turned on, the voltage goes up and the cycle repeats. Maybe the EC is telling the charger to reduce the voltage/current (because of what?).
Linux (in /sys/class/power_supply/BAT1/uevent) says that the charging power goes up to around 20W and then down to only 1.5W.
The AC adapter voltage remains at 19.5-19.6V.
With the battery disconnected, there's 13.4V on the battery...
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Re: HP Sprectre x360 15-DF DAX38CMBAG0 (Quanta X38) not charging
Discovered some more FETs on the back side of the board (completely covered by black plastic sheet)!
There are two AC switching FETs and three that look like bypass FETs from ISL9241 datasheet. As they were nowhere to be found (and there's no schematic), I thought that there was no bypass.
There are two 0203GMT (AP0203GMT) (in parallel) on VADP side and one M3092M (QM3092M6) on VSYS side. There's G-S short! Used bench supply to force current through the short and looks like the short is...
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