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HMD Crest 5G Repair Manual
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HMD Crest 5G Repair Manual

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HMD Crest 5G and Crest Max 5G
repair guide

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Summary of Contents for HMD Crest 5G

  • Page 1: Hmd Crest And Crest Max Repair Guide

    HMD Crest 5G and Crest Max 5G repair guide...

  • Page 2: Table Of Contents

    Version: June 22nd 2024 HMD Crest and Crest Max repair guide ....................1 Exchange of back cover ........................... 4 Required tools ............................. 4 Required spares ..........................4 Dis-assembly steps ..........................4 Assembly steps ..........................11 Exchange of battery ..........................16 Required tools ...........................
  • Page 3 Version: June 22nd 2024 HMD Crest and Crest Max repair guide Disassembly and assembly instruction for HMD Crest and Crest Max 5G smartphone. Please make sure you have all the tools and spare parts for the repair. Follow these steps carefully! For repair...

  • Page 4: Exchange Of Back Cover

    Exchange of back cover Required tools SIM opener tool Opening tool SRT6 Angled tweezer Required spares HMD Crest or Crest Max back cover Dis-assembly steps Eject the Sim card tray Turn off your device and remove all attached cables Take the SIM opener tool and push...
  • Page 5 Version: June 22nd 2024 Remove the SIM card tray Insert opening tool SRT6 Insert the opening tool under the small edge in the SIM card tray slot...
  • Page 6 Version: June 22nd 2024 Release the back cover Slide the opening tool along the side Continue to slide the opening tool around the corner to the bottom side Continue sliding the opening tool along the bottom side...
  • Page 7 Version: June 22nd 2024 Continue sliding the opening tool along the bottom side Slide the opening tool along the other side of the phone Continue to slide the opening tool along the other side of the phone...
  • Page 8 Version: June 22nd 2024 Continue to slide the opening tool along the other side of the phone and through the top side Open the back cover When reached around, check the phone carefully that the back cover is released on all sides Flip the back cover carefully...
  • Page 9 Version: June 22nd 2024 Take care not to strain or tear the attached fingerprint reader cable during this procedure Remove the fingerprint cable Take a note of the actual location and position of fingerprint reader cable for later assembly Use the angled tweezer to lift the fingerprint reader out of back cover...
  • Page 10 Version: June 22nd 2024 Remove the fingerprint reader Remove the back cover Now you can remove the back cover from the device...

  • Page 11: Assembly Steps

    Version: June 22nd 2024 Assembly steps Take new battery cover Place a new back cover near to your phone Attach fingerprint cable Take the back cover in your hand, place it close to the phone so, that the fingerprint flex cable can reach its position Check for the exact assembly location of the fingerprint flex cable...
  • Page 12 Version: June 22nd 2024 Fit the tab on the end of the fingerprint reader between the pegs on the back cover so, that the fingerprint reader fits into the slot on the back cover Hook the tab on the other side starting with the bottom edge Now hook the tab on the top side as well...
  • Page 13 Version: June 22nd 2024 Check for the proper position of the fingerprint flex cable Closing the back cover Fold the back cover over the phone so that the fingerprint reader flex cable is not stretched Fit first the top short side of the back cover Push gently the bottom side of the back cover to the phone...
  • Page 14 Version: June 22nd 2024 Press the back cover onto the phone Gently press the back cover in circle in several locations Gently press the back cover in circle in several locations...
  • Page 15 Version: June 22nd 2024 Continue pressing the back cover to the phone until it fits everywhere Inserting the SIM tray Insert you SIM card to the SIM card tray as per the manual and insert it to the phone Your phone is ready to use now...

  • Page 16: Exchange Of Battery

    Version: June 22nd 2024 Exchange of battery For your safety, turn on your phone and allow the battery to discharge below 25% before starting this procedure. This reduces the risk of fire if the battery is accidentally damaged during the repair. If your battery looks swollen, take extra precautions Don't reuse the battery after it's been removed.
  • Page 17 Version: June 22nd 2024 Remove screws Using the screwdriver remove the 8 pcs visible screws After removing the 3 bottom screws remove the metal plate by lifting its right edge Remove the vulnerable label and remove the screw from below...
  • Page 18 Version: June 22nd 2024 Lift the motherboard cover Insert the opening tool under the right edge of the motherboard cover and carefully lift it Lift the motherboard cover...
  • Page 19 Version: June 22nd 2024 Put the motherboard cover to the side...
  • Page 20 Version: June 22nd 2024 Fold the black foil By using your fingers, a plastic opener or a tweezer fold the black foil at the top of the battery Take care not to puncture the battery with sharp tools as a punctured or creased battery may leak dangerous chemicals or cause a fire...
  • Page 21 Version: June 22nd 2024 Take care not to puncture the battery with sharp tools as a punctured or creased battery may leak dangerous chemicals or cause a fire Disconnect the battery cable Fold bottom black foil By using your fingers, a plastic opener or tweezer fold the black foil at the bottom of the battery...
  • Page 22 Version: June 22nd 2024 Fold the tab on the battery coating foil By using your fingers, a plastic opener or a tweezer fold the battery coating foil on the side of the battery Take care not to puncture the battery with sharp tools as a punctured or creased battery may leak dangerous chemicals or cause a fire...

  • Page 23: Assembly Steps

    Version: June 22nd 2024 Keep the removed battery separately and dispose it as per your local regulations Please visit hmd.com for more details Assembly steps Insert the new battery Take the new battery Remove the battery adhesives cover foils from the bottom of the...
  • Page 24 Version: June 22nd 2024 Push it gently until it correctly connected Put back the motherboard cover Take the formerly removed motherboard cover and place it back to the top of the phone Make sure the motherboard cover matches with the screw holes Screw 1 pc screw, preferably the top right corner...
  • Page 25 Version: June 22nd 2024 Check the fingerprint reader Check that the fingerprint reader connection is not loose If it is, gently press it with the opening tool Insert the metal clamp Insert the metal clamp to its position starting from the left side...
  • Page 26 Version: June 22nd 2024 Check the position of the metal clamp Fix the metal clamp with one screw in the middle of the clamp Add the screws Add and fasten all remaining 7 screws Assemble the back cover Please follow the instructions of section: Back cover Assembly steps...

  • Page 27: Exchange Of Charging Port

    Version: June 22nd 2024 Exchange of charging port Required tools SIM opener tool Opening tool SRT6 Angled tweezer Precision Bit Driver Precision Screw Driver Bit PH00 Opening tool prime set Required spares Charging port Dis-assembly steps Remove the back cover Please follow the instructions of section: Exchange of back cover After removing the back cover continue with these steps...
  • Page 28 Version: June 22nd 2024 Remove screws Using the screwdriver remove the 8 pcs visible screws After removing the 3 bottom screws remove the metal plate by lifting its right edge Remove the vulnerable label and remove the screw from below...
  • Page 29 Version: June 22nd 2024 Lift the motherboard cover Insert the opening tool under the right edge of the motherboard cover and carefully lift it Lift the motherboard cover...
  • Page 30 Version: June 22nd 2024 Put the motherboard cover to the side Fold the black foil By using your fingers, a plastic stick or a tweezer fold the black foil at the top of the battery Take care not to puncture the battery with sharp tools as a punctured or creased battery may leak dangerous chemicals or cause...
  • Page 31 Version: June 22nd 2024 Disconnect battery from the motherboard Keep hold the black foil and by using a plastic stick disconnect the battery flex cable from the motherboard Take care not to puncture the battery with sharp tools as a punctured or creased battery may leak dangerous chemicals or cause a fire...
  • Page 32 Version: June 22nd 2024 Remove the vulnerable label and remove the screw from below Remove speaker box Reach underneath from the right side with a plastic stick or opening tool and lift the speaker box to remove it Put the speaker box to aside...
  • Page 33 Version: June 22nd 2024 Disconnect the main flex Disconnect the main flex cable from the charging port circuit, use plastic stick or opening tool Disconnect coax cables On the bottom right side carefully disconnect the black coax cable by using the tweezer Please take a note of its position...
  • Page 34 Version: June 22nd 2024 On the bottom middle side carefully disconnect the white coax cable by using the tweezer Please take a note of its position Remove the charging port Lift the charging port with the tip of a plastic stick...
  • Page 35 Version: June 22nd 2024 Check the picture for proper lift position Charging port removed Remove rubber covers Remove the rubber parts from the charging port...

  • Page 36: Assembly Steps

    Version: June 22nd 2024 Assembly steps Preparation of new charging port Put the connector rubbers over the new charging port board Check picture for proper placement Insert the new charging port Insert the charging port board in place, adjust it to fit closely over the USB slot...
  • Page 37 Version: June 22nd 2024 Make sure the charging port fits correctly Connect the white coax cable Connect the white coax cable by using the opening tool See picture for proper position of the coax cable...
  • Page 38 Version: June 22nd 2024 Connect the main flex cable Connect the main flex cable Use the opening tool for connecting the main flex cable Connect the black coax cable Connect the white coax cable by using the opening tool...
  • Page 39 Version: June 22nd 2024 See picture for proper position of the coax cable Insert the speaker box Insert the speaker box Hold the speaker box in place with your finger until you have secured it with at least one screw...
  • Page 40 Version: June 22nd 2024 Fix the speaker box with one screw Tighten all screws Tighten all the remaining screws (7 pcs) Assemble the back cover Please follow the instructions of section: Back cover Assembly steps...

  • Page 41: Exchange Of Screen

    Version: June 22nd 2024 Exchange of screen Required tools SIM opener tool Opening tool SRT6 Angled tweezer Precision Bit Driver Precision Screw Driver Bit PH00 Opening tool prime set Required spares Screen Dis-assembly steps Remove the back cover Please follow the instructions of section: Exchange of back cover Remove the battery Please follow the instructions of section: Exchange of battery Remove the charging port...
  • Page 42 Version: June 22nd 2024 Remove the vibra motor Carefully reach under the vibra motor on the bottom right side of the phone and remove it Avoid damaging the vibra motor Vibra removed...
  • Page 43 Version: June 22nd 2024 Disconnect the coax cables on the top side Fold the black foil on the top side and underneath you will find the white and black coax cables. Use the angled tweezer to disconnect them Carefully remove the white coax cable from the screen frame Then disconnect the black coax cable...
  • Page 44 Version: June 22nd 2024 Disconnect main flex cable Fold the black foil on the top side and underneath you will find the main flex connector. Use a plastic stick to disconnect it Take care of the small parts of the main board not to damage them...
  • Page 45 Version: June 22nd 2024 Disconnect the fingerprint On the left side of the phone you will find the fingerprint connector.. Use a plastic stick to disconnect it Take care of the small parts of the main board not to damage them Start lifting on the right side of the connector Put the removed fingerprint...
  • Page 46 Version: June 22nd 2024 Disconnect the screen connector In the middle of the phone you will find the display connector. Use a plastic stick to disconnect it Take care of the small parts of the main board not to damage them Start lifting on the right side of the connector Gently disconnect the screen...
  • Page 47 Version: June 22nd 2024 Remove main board By using the opener tool lift the main board Start lifting at the shown position Remove the main board from the phone...
  • Page 48 Version: June 22nd 2024 Remove the main flex cable and the coax cables Underneath the battery you will the main flex cable On the right side of the phone you will find the disconnected white and black coax cables Remove also these By using a tweezer remove the speaker from the screen frame...

  • Page 49: Assembly Steps

    Version: June 22nd 2024 Assembly steps Insert the vibra Take the formerly removed vibra and insert into the right bottom side of the phone Insert the speaker Take the formerly removed speaker and insert into the top middle position of the phone Press it gently until it fits to its position...
  • Page 50 Version: June 22nd 2024 Insert the white coax cable Take the formerly removed white coax cable and insert into the right side of the phone For proper position please follow the white arrows shown on the picture Insert the black coax cable Take the formerly removed white coax cable and insert into the right side of the phone...
  • Page 51 Version: June 22nd 2024 For proper position please follow the black arrows shown on the picture Insert the main flex cable Take the formerly removed main flex cable and insert into the phone Please note the text “MB” should be to the top side, while the text “SUB”...
  • Page 52 Version: June 22nd 2024 Insert main board Take the formerly removed main board and insert to the phone Make sure that the screen connector cable is lead through the hole of the main board module Fix the main board Take 1 pc of screw and fix with it the main board.
  • Page 53 Version: June 22nd 2024 Connect display flex cable Connect the display flex cable (black color) by using the opening tool Make sure that the screen connector cable is lead through the hole of the main board module Connect main flex cable Connect the main flex cable (gold color) by using the opening tool...
  • Page 54 Version: June 22nd 2024 Connect the display flex cable (black color) by using the opening tool Connect coax cables Connect the white and then then the black coax cables Black coax cable is more to the left while white is more to the right Press them gently and make sure proper connection...
  • Page 55 Version: June 22nd 2024 Insert the battery Fold the black foil, take the battery and insert into the phone. Make sure that the adhesives positioned properly (face down) Make sure the proper position of the main flex cable Insert charging port Take the formerly removed charging port and insert to the bottom of the phone...
  • Page 56 Version: June 22nd 2024 Connect white coax cable Connect the white coax cable by using the opening tool Make sure it is connected properly Connect the main flex cable Connect the main flex cable...
  • Page 57 Version: June 22nd 2024 Connect the main flex cable Connect the black coax cable Connect the black coax cable by using the opening tool Make sure it is connected properly...
  • Page 58 Version: June 22nd 2024 Insert speaker box Insert the speaker box Hold the speaker box in place with your finger until you have secured it with at least one screw Fix the speaker box with one screw...
  • Page 59 Version: June 22nd 2024 Tighten all screws Tighten all the remaining screws (7 pcs) Reconnect battery Fold the black foil and connect the battery connector using the opening tool Push it gently until it correctly connected...
  • Page 60 Version: June 22nd 2024 Put back the motherboard cover Take the formerly removed motherboard cover and place it back to the top of the phone Make sure the motherboard cover matches with the screw holes Screw 1 pc screw, preferably the top right corner Connect the fingerprint reader Connect the fingerprint reader...
  • Page 61 Version: June 22nd 2024 Connect the fingerprint reader connector Insert the metal clamp Insert the metal clamp to its position starting from the left side Check the position of the metal clamp...
  • Page 62 Version: June 22nd 2024 Fix the metal clamp with one screw in the middle of the clamp Add screws Add and fasten all remaining 7 screws Assemble the back cover Please follow the instructions of section: Back cover Assembly steps...

This manual is also suitable for:

Crest max 5g