Godox says NO. Major Flaw in Godox X3 / X3 Pro: Mixed setups are broken and Godox refuses to fix it

I’m reposting this here for a broader technical discussion because it was deleted by the mods in the brand-specific sub without explanation. I believe this is a critical issue for pros using the Godox ecosystem.

**Clarification:** This hardware flaw directly impacts the **TCM (TTL-to-Manual)** functionality. Without the ability to set the correct Joule output for each flash group, the transmitter cannot accurately calculate and translate power settings, rendering TCM unreliable for mixed-flash setups.

I’m a professional photographer with over 15 years in the field and thousands of euros invested in the Godox ecosystem (AD800, AD600 Pro IIs, AD200 Pro IIs, MS300Vs, Parabolix P158 etc.). I recently reported a deal-breaker issue with the **Godox X3 (Nano)** transmitter regarding the TCM (TTL-to-Manual) function in mixed setups.

**The Problem:** In a mixed flash setup (e.g., Group A: AD600 Pro II and Group B: AD200 Pro II), the **TCM power setting (Joules) is GLOBAL**, not per-group.

* If you set Group A to 600j, Group B automatically switches to 600j.
* If you change Group B to 200j, Group A instantly flips to 200j.

Because the X3 cannot store independent Joule values per group, the TCM conversion is **mathematically impossible** for mixed setups. You either get the wrong exposure on your big strobes or the wrong exposure on your small ones.

**THE UPDATE FROM GODOX SUPPORT:** I officially reached out to Godox technical support to report this as a firmware bug. Their response was disappointing, to say the least.

**The Reality:** Godox is basically admitting that their "revolutionary" touch-screen trigger has a core architectural or marketing limitation that prevents it from doing what the older XPro II does perfectly. Whether it’s a hardware memory limit or a deliberate choice to keep the XPro II relevant, the result is the same: **The X3 is NOT a professional tool for mixed-strobe environments.**

If you are a pro who relies on TTL-to-Manual workflow to save time on set, stay away from the X3 series if you use different flash models. It’s a beautiful paperweight for anyone using more than one type of light.

**Final Verdict:** To be clear, as a professional **I don’t rely on TCM to do my job.** I’ve worked in **Manual mode** for the vast majority of my career and I can dial in my lights in seconds. However, when a company markets a "Pro" device and highlights a flagship feature like TCM, it should actually work in professional, mixed-lighting scenarios.

I'm not posting this because I can't shoot without it, but because the community needs to know the limitations of the gear they are paying for. If you are buying the X3 specifically for its "smart" features to use with a diverse kit of strobes, be aware that Godox has essentially abandoned this functionality for the X3 series.

EDIT 2: And here’s the second major flaw for professional use: The UI ergonomics. In older models, TCM was a simple long-press on a physical button. On the X3, you have to swipe the screen and enter a menu to find it. If you are shooting fast-paced location portraits where the ambient light is shifting (clouds moving in and out) and you need to lock your base exposure instantly to keep shooting in Manual for consistency, this 'swipe and tap' workflow is a disaster. You lose eye contact with the subject and you lose the rhythm of the shoot. When you combine a broken calculation algorithm with a clunky, slow UI, the feature becomes a liability rather than an asset. It’s a classic case of prioritizing 'tech-look' over actual professional field utility.

EDIT 3: Official Update from Godox Support, I followed up with Godox technical support to clarify if this "Global" Joules behavior was a bug or if another trigger in their lineup handles independent per-group scaling for TCM. Their final response was quite revealing:

My question:

"Which trigger supports that function? (independent Joule settings per group for accurate TCM in mixed setups)"

Godox Support Response: "Thank you for your inquiry. Unfortunately, it appears that none of our flash triggers support the feature you mentioned. We apologize for any inconvenience caused."

The Conclusion:

It is now officially confirmed that while the X3 UI allows you to select Joules/Flash IDs for each group, those values are not used for independent power scaling during TCM. Despite the professional-looking menu, the transmitter still applies a universal calculation across all groups. If you work with a mixed kit (e.g., AD600s and AD200s) and rely on TCM to bridge the gap between TTL and Manual, the X3 will not provide the accuracy the menu settings might lead you to expect.