[SOLVED] I'm looking for RAGE Curve 5.0 repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my RAGE Curve 5.0. It's started acting up, and I'm looking for a detailed service manual with boardviews and schematics to properly diagnose and repair it. I need to take precise voltage measurements around the board, so having the right documentation would be very helpful.

Thanks in advance for your help.

Selected Answer

I actually found that service manual on a tech Discord server a while back. A really helpful member there shared a direct link to their blog and I've saved it. I'm happy to pass it along here. Hopefully, these boardviews and schematics help you fix your phone, just like they got me through my repair. Looks like we have the same model.

@Chuck

Absolute legend! That's exactly the info I was searching for. This is going to save me so much time probing in the dark. Seriously, thanks a ton for sharing the link!

Hi there,

I also have the RAGE Curve 5.0 and just downloaded the manual you shared. I'm pretty new to board-level phone repair, and this is a bit intimidating with all the tiny test points and the schematics. Could you point me in the right direction on how to start troubleshooting this ? Any advice on the first few things I should check would be a massive help.

Thanks so much for your time

General advices: start by checking the voltage at the battery connector on the board. With a known-good battery connected, you should see a steady voltage between 3.7V and 4.2V. After that, a great next step is to check the main power management IC (PMIC) for shorts. Using your multimeter in diode mode, check for shorts on the large input capacitors surrounding the PMIC.

Here are a few useful references for troubleshooting your device:
https://www.ifixit.com/Answers/View/504768/Built+In+Display+Not+Showing+Picture+Or+Backlight
Take a look at comment #1583
Also, this : https://www.ifixit.com/Answers/View/350347/Thermal+sensor+compatibility+WD+1TB+-+Seagate+SSHD+1TB.
You can also check this video starting from minute 4:

The RAGE Curve 5.0 service manual and boardviews from the link above were exactly what I've been searching for. I couldn't find a complete, free copy anywhere else. Seriously, thank you for sharing this you're a lifesaver!

Hi everyone, I'm working on a RAGE Curve 5.0 with a no power issue and need some guidance with my measurements.
I'm detecting 3.3V on the VREG_MAIN line (pin 1 of the PMIC), which looks good, but I'm getting 0V on the VDD_CPU line (pin 8) where the schematics indicate I should see about 0.9V.
Since this is a core voltage for the application processor, could this missing rail be why the device shows no signs of life?
What's the best procedure to diagnose this further? Should I check for shorts on the CPU rail first, or look at the PMIC's enable signals?
I've already verified the main 3.3V and 1.8V power rails are present and stable.

My RAGE Curve 5.0 was working perfectly until yesterday when it suddenly went completely dead. Now it won't respond to the power button, doesn't vibrate, and shows no signs of life even when connected to a charger. I'm worried there might be a serious issue.

I have a decent multimeter, a basic soldering iron, and a healthy dose of patience. While I've successfully replaced iPhone batteries and charging ports, this will be my first attempt at actual diagnosis. The sheer density of BGA chips and microscopic components is honestly a bit overwhelming.

I'm particularly curious about the alcohol trick I've seen online where you apply isopropyl to the board and look for evaporation hotspots to locate shorts. Is this actually a reliable method for beginners, or are there better approaches I should try first with just a multimeter?

I learned this lesson the hard way last month with mine, it was declared "dead" by two different shops. The phone showed absolutely no signs of life - no charging indicator, no vibration, nothing. Before diving into complex board work, I decided to try one more basic test: wireless charging.

To my complete surprise, it actually heated up on the charging pad! This single discovery completely changed my diagnostic path. It turned out the issue wasn't with the main board or processor, but with the notoriously fragile USB-C port that had failed completely. A $15 replacement part and some careful soldering brought it back to life.

The moral? Always exhaust every external testing method before opening the device. Test wireless charging if available, try different charging methods, and don't assume the worst case scenario. Sometimes the most "dead" devices have the simplest solutions hiding in plain sight.

I suspect my issue might be related to that cheap, third-party fast charger I used at the airport last week... Now the device gets extremely hot during charging, the screen flickers at low brightness, and sometimes it randomly shuts down at 30% battery. Could this have damaged the power management IC or battery calibration?

If your RAGE Curve 5.0 starts acting up, random reboots, fast battery drain, or connectivity issues, there are several diagnostic steps you can take before assuming the worst:

• Check your charging habits: Using poor-quality chargers or wireless pads can gradually damage your battery and charging circuit, leading to unpredictable behavior.
• Inspect the physical components: A slightly damaged charging port, worn battery, or even accumulated pocket lint can cause issues that seem like major hardware failures.
• Monitor temperature patterns: If your phone gets unusually hot during specific tasks (like camera use or gaming), it could point to a failing component rather than a software issue.
• Use diagnostic tools wisely: Ampere for battery health, phone diagnostic codes (*#0*# on many models), and a thermal camera can reveal problems without opening the device.
• Know when to stop: If you see liquid damage indicators tripped or smell burnt electronics, it's time to consult a professional before causing irreversible damage.

Also visit this link it may help : https://www.ifixit.com/Answers/View/645332/When+I+type+backspace+it+shutdown

Here's what I discovered on forums and technical databases:

Reset Network Settings: This option (usually found in System or General settings) resets Wi-Fi, Bluetooth, and cellular network settings to default, without erasing personal data. Technique 3: Repairing Larger Area Ground Plane Damage (Copper Foil Method) Check "About Phone": Look for missing IMEI, Baseband Version, Wi-Fi/Bluetooth MAC addresses. Bubble Remover Machine (Autoclave): A high-pressure chamber (often operating at elevated temperatures) that eliminates any microscopic air bubbles trapped between the glass and the LCD/OLED after lamination, ensuring a flawless finish. Place a suction cup firmly on the bottom half of the screen, just above the home button (if present) or charging port. "Searching for GPS" constantly: The navigation app continuously displays this message. Integrated directly onto the logic board (less common for a separate antenna component, but the transceiver chip is always on the board). This comprehensive guide will equip you with the knowledge to thoroughly analyze smartphone microphone issues and identify their root cause. ESD Protection: Anti-static mat and wrist strap are highly recommended. The inspection process requires a combination of appropriate tools, a systematic approach, and keen observation. Using schematics and board views to locate these tiny components and testing them with a multimeter in continuity mode (for fuses) or diode mode (for diodes) is standard practice for diagnosing power-related faults. This step requires opening the phone, which entails risk and necessitates specific tools. If the continuity test fails or is intermittent, switch your multimeter to resistance mode (Ohms, Ω). - Pitting or Rough Texture: With advanced corrosion, the smooth surface of the pins might become pitted, uneven, or visibly rough. Physical Damage: Drops or impacts can damage the sensitive internal optics, lens elements, or the camera’s internal flex cables. Final Reassembly: Carefully reassemble the phone, ensuring all components are correctly seated, all screws are present, and any adhesive seals are properly restored. Lower-quality aftermarket parts might fail prematurely, requiring repeated repairs. Solder Paste Application: Apply a thin, even layer of low-melting-point solder paste over the stencil openings, filling each hole completely. By carefully observing the symptoms, understanding the common causes, and systematically applying the appropriate troubleshooting steps, you can significantly increase your chances of successfully resolving the issue and getting your device back up and running.How to determine smartphone bootloader problems It's often near the earpiece, front camera, or ambient light/proximity sensors. From automatically adjusting screen brightness and rotating the display to enabling complex augmented reality applications and sophisticated biometric security like Face ID, sensors are integral. Professional Labs: Necessary for board-level repairs, JTAG, eMMC direct read, or chip-off recovery. In this case, the flex cable usually needs replacement, or the damaged part of the flex cable needs to be carefully bypassed if possible. A cracked or damaged display bracket, often resulting from drops, impacts, or even excessive bending, can lead to a host of problems. This guide will provide a comprehensive, step-by-step walkthrough to help you safely replace a cracked or faulty LCD display, restoring your smartphone's visual clarity and interactive capabilities. This is vital to prevent any accidental short circuits or electrical damage during the repair. Liquid Damage Indicators (LDIs): While LDIs inside the device indicate liquid ingress, if they are tripped without obvious external liquid damage, it might imply that compromised seals (due to adhesive failure) allowed moisture to enter. Using a small fan (not a hot air gun) to circulate air can speed up the process. Exercise extreme caution to avoid accidental shorts while the phone is open. Carefully open the smartphone, disconnect the battery, and remove the main logic board.

@Natasha, Not sure what you're trying to say but ok :)