# \[HowTo\]\[Modding\] Homey Pro (Early 2023) - Resize user Partition on eMMC

**URL:** <https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591>\
**Category:** Questions & Help\
**Tags:** homey-pro, homey-pro-2023, modding, howto\
**Created:** [June 2, 2023, 10:20pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591 "2023-06-02T22:20:26Z")\
**Posts on this page:** 8\
**Page:** 6

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**Author:** ![Shiki](https://avatars.discourse-cdn.com/v4/letter/s/5fc32e/32.png) [@Shiki](https://community.homey.app/u/Shiki)\
**Post date:** [July 20, 2025, 9:44am UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/102 "2025-07-20T09:44:33Z")

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**Hi all,**

I’m running one of the initial batches of the HP23. Recently, the CPU has randomly spiked to 800%, causing several crashes and a blinking red LED with no changes on devices and flow. I suspect the hardware (emmc) is starting to fail.

I’m considering this a good opportunity to back up the system and replace the board with a new CM4. Could anyone advise which CM4 model is currently recommended for this mod, and point me to the most up-to-date guide for the replacement?

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**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\
**Post date:** [July 21, 2025, 5:45pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/103 "2025-07-21T17:45:12Z")

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If I would do it again, I would go for CM4108016 or CM4108032 - the guide Dijker shared is still the best you would get / if anything it’s not true anymore, feel free to comment.

> [@\[HowTo\]\[Modding\] Homey Pro (Early 2023) - Resize user Partition on eMMC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591):
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> This topic describes how I resized my user partition in my Modded Homey Pro (Early 2023) This was necessary (because I wanted wink ) as the Replaced CM4 Raspberry Pi Compute module I placed had more Flash memory than the Default 8 GB eMMC Flash. Modding of Homey voids the warranty and can have unforeseen side effects! Be carefully and know What you do. Bigger Flash storage can (will) have impact on the size and duration of Backup and the Cloud-backend of Homey’s Backup. Other internal …

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**Author:** ![R5Turbo](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/r5turbo/32/15151_2.png) [@R5Turbo](https://community.homey.app/u/R5Turbo)\
**Post date:** [December 16, 2025, 9:50pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/104 "2025-12-16T21:50:12Z")

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I got a CM4108032 modul for a decent price and I tried to replace it today. However, it seems that my thermal pads stuck on the raspbi board and not on the alu heatsink. I wasn’t able to move them to the new board without damaging. So I left everything as it was inserted the old board again.

To try it again, I need new thermal pads. Any hints what I should buy?

 ![Screenshot 2025-12-16 at 22.44.38](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/5/45acec77f8a93dc927cbff6d2921107fb6e434fa.jpeg)

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**Author:** ![Henk\_Renting](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/henk_renting/32/87634_2.png) [@Henk\_Renting](https://community.homey.app/u/Henk_Renting)\
**Post date:** [December 16, 2025, 10:02pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/105 "2025-12-16T22:02:20Z")

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Same question here.  
Where did you buy your CM4, @R5Turbo and @Gerrit_Ekelmans ?

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**Author:** ![Gerrit\_Ekelmans](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gerrit_ekelmans/32/8452_2.png) [@Gerrit\_Ekelmans](https://community.homey.app/u/Gerrit_Ekelmans)\
**Post date:** [December 16, 2025, 10:19pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/106 "2025-12-16T22:19:19Z")

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I also changed the cm4 today for a 8gb /32 gb and i take the thermal pad of with a nife 🫣 put it on the new cm4 together with heat paste from my 3d printer.

Till now the temperature is lower then before

 ![1000029372](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/5/9507be0975e2d433a6d90c62293b609a2d1f9161.jpeg)

 ![1000029374](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/5/b50dfd88f370e0e97eb21aaff7c04fde06215c86.jpeg)

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**Author:** ![danone](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/danone/32/115743_2.png) [@danone](https://community.homey.app/u/danone)\
**Post date:** [December 17, 2025, 12:43am UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/107 "2025-12-17T00:43:08Z")

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Always try using new thermal conductive pads when taking off the heat sink.

Got a bunch of them from Amazon and cut them to size.

> **[ADWITS 6 Pack Assorted Thickness 0.5 1.0 1.5 mm Thermal Conductive Silicone...](https://www.amazon.com.au/dp/B07X38254H?ref=cm_sw_r_cso_cp_apin_dp_9FZ4FTJQQWE8812J2D7F&ref_=cm_sw_r_cso_cp_apin_dp_9FZ4FTJQQWE8812J2D7F&social_share=cm_sw_r_cso_cp_apin_dp_9FZ4FTJQQWE8812J2D7F)**
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> ADWITS 6 Pack Assorted Thickness 0.5 1.0 1.5 mm Thermal Conductive Silicone Pads with 6.0 W/mk Thermal Conductivity, Soft Safe Simple to Apply for SSD CPU GPU LED IC Chipset Cooling -Blue : Amazon.com.au: Computers

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**Author:** ![R5Turbo](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/r5turbo/32/15151_2.png) [@R5Turbo](https://community.homey.app/u/R5Turbo)\
**Post date:** [December 17, 2025, 9:42pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/108 "2025-12-17T21:42:02Z")

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I’m from switzerland and I bought the CM4 from [Farnell](https://ch.farnell.com/raspberry-pi/cm4108032/rpi-compute-module-4-32gb-emmc/dp/3585683?CMP=e-email-sys-orderconfirmed-GLB-Product)…

@danone thanks for the link, I’ll order new pads.

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**Author:** ![Welshsmarthome](https://avatars.discourse-cdn.com/v4/letter/w/df705f/32.png) [@Welshsmarthome](https://community.homey.app/u/Welshsmarthome)\
**Post date:** [December 17, 2025, 10:12pm UTC](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591/109 "2025-12-17T22:12:04Z")

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So correct me if im wrong because ive been following this, desperately clinging on to what memory i have left in my HO2023 and underwhelmed with the update of the 2026 but now maybe…. with SHS we can buy any type of PI or nas ir Linux we want and make it as powerful as we need to run homey. No more jailbreak or mess.  
Can use the HP2023 or a Homey bridge for the antenna and its done?

Is it that simple?

[Previous page](https://community.homey.app/t/howto-modding-homey-pro-early-2023-resize-user-partition-on-emmc/81591.md?page=5)
